OccludeModel and BoxOccluder editing basics

CodeWalker.Core/GameFiles/FileTypes/YmapFile.cs

@@ -589,6 +589,28 @@ namespace CodeWalker.GameFiles
             //how to rebuild these here? the LODlights array is on the child ymap...
             //for now, they are being updated as they are edited in project window
         }
+        public void BuildBoxOccluders()
+        {
+            if (BoxOccluders == null) return;
+            if (BoxOccluders.Length == 0) return;
+
+            var boxes = new BoxOccluder[BoxOccluders.Length];
+            for (int i = 0; i < BoxOccluders.Length; i++)
+            {
+                var box = BoxOccluders[i];
+                box.UpdateBoxStruct();
+                boxes[i] = box._Box;
+            }
+
+            CBoxOccluders = boxes;
+
+        }
+        public void BuildOccludeModels()
+        {
+            if (OccludeModels == null) return;
+            if (OccludeModels.Length == 0) return;
+            //nothing to do here, has to be done later due to embedded data
+        }
 
         public byte[] Save()
         {
@@ -601,11 +623,11 @@ namespace CodeWalker.GameFiles
             BuildInstances();
             BuildLodLights();
             BuildDistantLodLights();
+            BuildBoxOccluders();
+            BuildOccludeModels();
 
             //TODO:
             //BuildTimecycleModifiers(); //already being saved - update them..
-            //BuildBoxOccluders();
-            //BuildOccludeModels();
             //BuildContainerLods();
 
 
@@ -658,14 +680,12 @@ namespace CodeWalker.GameFiles
 
             mapdata.carGenerators = mb.AddItemArrayPtr(MetaName.CCarGen, CCarGens);
 
-            //clear everything out for now - TODO: fix
+
+
+            //clear everything else out for now - TODO: fix
             if (mapdata.containerLods.Count1 != 0) LogSaveWarning("containerLods were not saved. (TODO!)");
-            if (mapdata.occludeModels.Count1 != 0) LogSaveWarning("occludeModels were not saved. (TODO!)");
-            if (mapdata.boxOccluders.Count1 != 0) LogSaveWarning("boxOccluders were not saved. (TODO!)");
             if (mapdata.instancedData.PropInstanceList.Count1 != 0) LogSaveWarning("instancedData.PropInstanceList was not saved. (TODO!)");
             mapdata.containerLods = new Array_Structure();
-            mapdata.occludeModels = new Array_Structure();
-            mapdata.boxOccluders = new Array_Structure();
 
             if ((GrassInstanceBatches != null) && (GrassInstanceBatches.Length > 0))
             {
@@ -720,6 +740,32 @@ namespace CodeWalker.GameFiles
                 mapdata.DistantLODLightsSOA = new CDistantLODLight();
             }
 
+            if ((CBoxOccluders != null) && (CBoxOccluders.Length > 0))
+            {
+                mapdata.boxOccluders = mb.AddItemArrayPtr(MetaName.BoxOccluder, CBoxOccluders);
+            }
+            else
+            {
+                mapdata.boxOccluders = new Array_Structure();
+            }
+            if ((OccludeModels != null) && (OccludeModels.Length > 0))
+            {
+                COccludeModels = new OccludeModel[OccludeModels.Length];
+                for (int i = 0; i < OccludeModels.Length; i++)
+                {
+                    var model = OccludeModels[i];
+                    model.BuildVertices();
+                    model.BuildData();
+                    var cocc = model._OccludeModel;
+                    cocc.verts = mb.AddDataBlockPtr(model.Data, (MetaName)MetaStructureEntryDataType.UnsignedByte);//17
+                    COccludeModels[i] = cocc;
+                }
+                mapdata.occludeModels = mb.AddItemArrayPtr(MetaName.OccludeModel, COccludeModels);
+            }
+            else
+            {
+                mapdata.occludeModels = new Array_Structure();
+            }
 
 
             var block = new CBlockDesc();
@@ -751,9 +797,17 @@ namespace CodeWalker.GameFiles
             mb.AddStructureInfo(MetaName.CDistantLODLight);
             mb.AddStructureInfo(MetaName.CBlockDesc);
             mb.AddStructureInfo(MetaName.CMapData);
-            mb.AddStructureInfo(MetaName.CEntityDef);
+            if ((AllEntities != null) && (AllEntities.Length > 0))
-            mb.AddStructureInfo(MetaName.CMloInstanceDef);
+            {
-            mb.AddStructureInfo(MetaName.CTimeCycleModifier);
+                mb.AddStructureInfo(MetaName.CEntityDef);
+                mb.AddStructureInfo(MetaName.CMloInstanceDef);
+                mb.AddEnumInfo(MetaName.rage__eLodType); //LODTYPES_
+                mb.AddEnumInfo(MetaName.rage__ePriorityLevel);  //PRI_
+            }
+            if ((CTimeCycleModifiers != null) && (CTimeCycleModifiers.Length > 0))
+            {
+                mb.AddStructureInfo(MetaName.CTimeCycleModifier);
+            }
             if ((CCarGens != null) && (CCarGens.Length > 0))
             {
                 mb.AddStructureInfo(MetaName.CCarGen);
@@ -766,9 +820,14 @@ namespace CodeWalker.GameFiles
             {
                 mb.AddStructureInfo(MetaName.FloatXYZ);
             }
-
+            if ((CBoxOccluders != null) && (CBoxOccluders.Length > 0))
-            mb.AddEnumInfo(MetaName.rage__eLodType); //LODTYPES_
+            {
-            mb.AddEnumInfo(MetaName.rage__ePriorityLevel);  //PRI_
+                mb.AddStructureInfo(MetaName.BoxOccluder);
+            }
+            if ((COccludeModels != null) && (COccludeModels.Length > 0))
+            {
+                mb.AddStructureInfo(MetaName.OccludeModel);
+            }
 
 
             Meta meta = mb.GetMeta();
@@ -1090,6 +1149,131 @@ namespace CodeWalker.GameFiles
             return true;
         }
 
+
+        public void AddBoxOccluder(YmapBoxOccluder box)
+        {
+            if (box == null) return;
+            var boxes = new List<YmapBoxOccluder>();
+            if (BoxOccluders != null) boxes.AddRange(BoxOccluders);
+            box.Ymap = this;
+            box.Index = boxes.Count;
+            boxes.Add(box);
+            BoxOccluders = boxes.ToArray();
+
+            HasChanged = true;
+        }
+
+        public bool RemoveBoxOccluder(YmapBoxOccluder box)
+        {
+            if (box == null) return false;
+            var newboxes = new List<YmapBoxOccluder>();
+            if (BoxOccluders != null)
+            {
+                foreach (var oldbox in BoxOccluders)
+                {
+                    if (oldbox != box)
+                    {
+                        oldbox.Index = newboxes.Count;
+                        newboxes.Add(oldbox);
+                    }
+                }
+                if (newboxes.Count == BoxOccluders.Length)
+                {
+                    return false;//nothing removed... wasn't present?
+                }
+            }
+
+            BoxOccluders = newboxes.ToArray();
+
+            HasChanged = true;
+
+            return true;
+        }
+
+
+        public void AddOccludeModel(YmapOccludeModel model)
+        {
+            if (model == null) return;
+            var models = new List<YmapOccludeModel>();
+            if (OccludeModels != null) models.AddRange(OccludeModels);
+            model.Ymap = this;
+            models.Add(model);
+            OccludeModels = models.ToArray();
+
+            HasChanged = true;
+        }
+
+        public bool RemoveOccludeModel(YmapOccludeModel model)
+        {
+            if (model == null) return false;
+            var newmodels = new List<YmapOccludeModel>();
+            if (OccludeModels != null)
+            {
+                foreach (var oldmodel in OccludeModels)
+                {
+                    if (oldmodel != model)
+                    {
+                        oldmodel.Index = newmodels.Count;
+                        newmodels.Add(oldmodel);
+                    }
+                }
+                if (newmodels.Count == OccludeModels.Length)
+                {
+                    return false;//nothing removed... wasn't present?
+                }
+            }
+
+            OccludeModels = newmodels.ToArray();
+
+            HasChanged = true;
+
+            return true;
+        }
+
+
+        public void AddOccludeModelTriangle(YmapOccludeModelTriangle tri)
+        {
+            if (tri == null) return;
+            if (tri.Model == null) return;
+
+            var tris = tri.Model.Triangles.ToList();
+            tri.Index = tris.Count;
+            tris.Add(tri);
+            tri.Model.Triangles = tris.ToArray();
+
+            //tri.Model.BuildBVH();
+            //...
+
+            HasChanged = true;
+        }
+
+        public bool RemoveOccludeModelTriangle(YmapOccludeModelTriangle tri)
+        {
+            if (tri == null) return false;
+            if (tri.Model == null) return false;
+
+            var newtris = new List<YmapOccludeModelTriangle>();
+            if (tri.Model.Triangles != null)
+            {
+                foreach (var oldtri in tri.Model.Triangles)
+                {
+                    if (oldtri != tri)
+                    {
+                        oldtri.Index = newtris.Count;
+                        newtris.Add(oldtri);
+                    }
+                }
+            }
+            tri.Model.Triangles = newtris.ToArray();
+            //tri.Model.BuildBVH();
+            //...
+
+            HasChanged = true;
+
+            return true;
+        }
+
+
         public void AddGrassBatch(YmapGrassInstanceBatch newbatch)
         {
             List<YmapGrassInstanceBatch> batches = new List<YmapGrassInstanceBatch>();
@@ -1197,6 +1381,10 @@ namespace CodeWalker.GameFiles
             {
                 flags = SetBit(flags, 1); //2
             }
+            if ((BoxOccluders != null) || (OccludeModels != null))
+            {
+                contentFlags = SetBit(contentFlags, 5); //32
+            }
 
 
             bool change = false;
@@ -1329,6 +1517,29 @@ namespace CodeWalker.GameFiles
                 smax = Vector3.Max(smax, (DistantLODLights.BBMax + 3000.0f));
             }
 
+            if (BoxOccluders != null)
+            {
+                foreach (var box in BoxOccluders)
+                {
+                    var siz = box.Size.Length() * 0.5f;//should really use box rotation instead....
+                    emin = Vector3.Min(emin, box.Position - siz);
+                    emax = Vector3.Max(emax, box.Position + siz);
+                    smin = Vector3.Min(smin, box.Position - siz);//check this! for some vanilla ymaps it seems right, others not
+                    smax = Vector3.Max(smax, box.Position + siz);//occluders don't seem to have a loddist
+                }
+            }
+
+            if (OccludeModels != null)
+            {
+                foreach (var model in OccludeModels)
+                {
+                    emin = Vector3.Min(emin, (model.BVH?.Box.Minimum ?? model._OccludeModel.bmin));//this needs to be updated!
+                    emax = Vector3.Max(emax, (model.BVH?.Box.Maximum ?? model._OccludeModel.bmax));
+                    smin = Vector3.Min(smin, (model.BVH?.Box.Minimum ?? model._OccludeModel.bmin));//check this! for some vanilla ymaps it seems right, others not
+                    smax = Vector3.Max(smax, (model.BVH?.Box.Maximum ?? model._OccludeModel.bmax));//occluders don't seem to have a loddist
+                }
+            }
+
             bool change = false;
             if (_CMapData.entitiesExtentsMin != emin)
             {
@@ -2854,6 +3065,21 @@ namespace CodeWalker.GameFiles
         public byte[] Indices { get; set; }
         public int Index { get; set; }
 
+        public YmapOccludeModelTriangle[] Triangles { get; set; }
+        public TriangleBVH BVH { get; set; }
+
+        public FlagsUint Flags
+        {
+            get
+            {
+                return _OccludeModel.flags;
+            }
+            set
+            {
+                _OccludeModel.flags = value;
+            }
+        }
+
         public YmapOccludeModel(YmapFile ymap, OccludeModel model)
         {
             Ymap = ymap;
@@ -2875,11 +3101,118 @@ namespace CodeWalker.GameFiles
         }
 
 
+        public void BuildTriangles()
+        {
+            if ((Vertices == null) || (Indices == null))
+            {
+                Triangles = null;
+                return;
+            }
+            var tris = new List<YmapOccludeModelTriangle>();
+            for (int i = 0; i < Indices.Length; i += 3)
+            {
+                var tri = new YmapOccludeModelTriangle(this, Vertices[Indices[i]], Vertices[Indices[i+1]], Vertices[Indices[i+2]], tris.Count);
+                tris.Add(tri);
+            }
+            Triangles = tris.ToArray();
+        }
+        public void BuildBVH()
+        {
+            if (Triangles == null)
+            {
+                BVH = null;
+                return;
+            }
+
+            BVH = new TriangleBVH(Triangles);
+
+        }
+        public void BuildVertices()
+        {
+            //create vertices and indices arrays from Triangles
+            if (Triangles == null)
+            {
+                Vertices = null;
+                Indices = null;
+                return;
+            }
+            var vdict = new Dictionary<Vector3, byte>();
+            var verts = new List<Vector3>();
+            var inds = new List<byte>();
+            byte ensureVert(Vector3 v)
+            {
+                if (vdict.TryGetValue(v, out byte b))
+                {
+                    return b;
+                }
+                if (verts.Count > 255)
+                {
+                    return 0;
+                }
+                var i = (byte)verts.Count;
+                vdict[v] = i;
+                verts.Add(v);
+                return i;
+            }
+            for (int i = 0; i < Triangles.Length; i++)
+            {
+                var tri = Triangles[i];
+                inds.Add(ensureVert(tri.Corner1));
+                inds.Add(ensureVert(tri.Corner2));
+                inds.Add(ensureVert(tri.Corner3));
+            }
+            Vertices = verts.ToArray();
+            Indices = inds.ToArray();
+        }
+        public void BuildData()
+        {
+            //create Data from vertices and indices arrays
+            if (Vertices == null) return;
+            if (Indices == null) return;
+            var dlen = (Vertices.Length * 12) + (Indices.Length * 1);
+            var d = new byte[dlen];
+            var vbytes = MetaTypes.ConvertArrayToBytes(Vertices);
+            var ibytes = Indices;
+            Buffer.BlockCopy(vbytes, 0, d, 0, vbytes.Length);
+            Buffer.BlockCopy(ibytes, 0, d, vbytes.Length, ibytes.Length);
+            Data = d;
+            var min = new Vector3(float.MaxValue);
+            var max = new Vector3(float.MinValue);
+            for (int i = 0; i < Vertices.Length; i++)
+            {
+                min = Vector3.Min(min, Vertices[i]);
+                max = Vector3.Max(max, Vertices[i]);
+            }
+            _OccludeModel.bmin = min;
+            _OccludeModel.bmax = max;
+            _OccludeModel.Unused0 = min.X;
+            _OccludeModel.Unused1 = max.X;
+            _OccludeModel.dataSize = (uint)dlen;
+            _OccludeModel.numVertsInBytes = (ushort)vbytes.Length;
+            _OccludeModel.numTris = (ushort)((ibytes.Length / 3) + 32768);//is this actually a flag lurking..?
+            //_OccludeModel.flags = ...
+        }
+
+        public YmapOccludeModelTriangle RayIntersect(ref Ray ray, ref float hitdist)
+        {
+            if (Triangles == null)
+            {
+                BuildTriangles();
+                BuildBVH();
+            }
+            else if (BVH == null)
+            {
+                BuildBVH();
+            }
+            if (BVH == null) return null;
+            return BVH.RayIntersect(ref ray, ref hitdist) as YmapOccludeModelTriangle;
+        }
+
         public EditorVertex[] GetTriangleVertices()
         {
             if ((Vertices == null) || (Indices == null)) return null;
             EditorVertex[] res = new EditorVertex[Indices.Length];//changing from indexed to nonindexed triangle list
-            var colour = new Color4(1.0f, 1.0f, 1.0f, 0.2f); //todo: colours for occlude models? currently transparent white
+            var colour = new Color4(1.0f, 0.0f, 0.0f, 0.8f); //todo: colours for occluders?
             var colourval = (uint)colour.ToRgba();
             for (int i = 0; i < Indices.Length; i++)
             {
@@ -2888,7 +3221,6 @@ namespace CodeWalker.GameFiles
             }
             return res;
         }
-
         public EditorVertex[] GetPathVertices()
         {
             return null;
@@ -2897,10 +3229,32 @@ namespace CodeWalker.GameFiles
         {
             return null;
         }
+
+        public override string ToString()
+        {
+            return Index.ToString() + ": " + (Vertices?.Length ?? 0).ToString() + " vertices, " + (Triangles?.Length ?? 0).ToString() + " triangles";
+        }
     }
 
     [TypeConverter(typeof(ExpandableObjectConverter))]
-    public class YmapBoxOccluder
+    public class YmapOccludeModelTriangle : TriangleBVHItem
+    {
+        public YmapOccludeModel Model { get; set; }
+        public YmapFile Ymap { get { return Model?.Ymap; } }
+        public int Index { get; set; }
+
+        public YmapOccludeModelTriangle(YmapOccludeModel model, Vector3 v1, Vector3 v2, Vector3 v3, int i)
+        {
+            Model = model;
+            Corner1 = v1;
+            Corner2 = v2;
+            Corner3 = v3;
+            Index = i;
+        }
+    }
+
+    [TypeConverter(typeof(ExpandableObjectConverter))]
+    public class YmapBoxOccluder : BasePathData
     {
         public BoxOccluder _Box;
         public BoxOccluder Box { get { return _Box; } set { _Box = value; } }
@@ -2916,6 +3270,7 @@ namespace CodeWalker.GameFiles
         public int Index { get; set; }
 
 
+
         public YmapBoxOccluder(YmapFile ymap, BoxOccluder box)
         {
             Ymap = ymap;
@@ -2934,6 +3289,68 @@ namespace CodeWalker.GameFiles
 
         }
 
+        public void UpdateBoxStruct()
+        {
+            _Box.iCenterX = (short)Math.Round(Position.X * 4.0f);
+            _Box.iCenterY = (short)Math.Round(Position.Y * 4.0f);
+            _Box.iCenterZ = (short)Math.Round(Position.Z * 4.0f);
+            _Box.iLength = (short)Math.Round(Size.X * 4.0f);
+            _Box.iWidth = (short)Math.Round(Size.Y * 4.0f);
+            _Box.iHeight = (short)Math.Round(Size.Z * 4.0f);
+
+            var dir = Orientation.Multiply(Vector3.UnitX) * 0.5f;
+            _Box.iSinZ = (short)Math.Round(dir.X * 32767.0f);
+            _Box.iCosZ = (short)Math.Round(dir.Y * 32767.0f);
+        }
+
+
+        public void SetSize(Vector3 s)
+        {
+            Size = s;
+            BBMin = Size * -0.5f;
+            BBMax = Size * 0.5f;
+        }
+
+
+        public EditorVertex[] GetTriangleVertices()
+        {
+            Vector3 xform(float x, float y, float z)
+            {
+                return Orientation.Multiply(new Vector3(x, y, z)) + Position;
+            }
+            EditorVertex[] res = new EditorVertex[36];
+            var colour = new Color4(0.0f, 0.0f, 1.0f, 0.8f); //todo: colours for occluders?
+            var c = (uint)colour.ToRgba();
+            var s = Size * 0.5f;
+            var v0 = new EditorVertex() { Position = xform(-s.X, -s.Y, -s.Z), Colour = c };
+            var v1 = new EditorVertex() { Position = xform(-s.X, -s.Y, +s.Z), Colour = c };
+            var v2 = new EditorVertex() { Position = xform(-s.X, +s.Y, -s.Z), Colour = c };
+            var v3 = new EditorVertex() { Position = xform(-s.X, +s.Y, +s.Z), Colour = c };
+            var v4 = new EditorVertex() { Position = xform(+s.X, -s.Y, -s.Z), Colour = c };
+            var v5 = new EditorVertex() { Position = xform(+s.X, -s.Y, +s.Z), Colour = c };
+            var v6 = new EditorVertex() { Position = xform(+s.X, +s.Y, -s.Z), Colour = c };
+            var v7 = new EditorVertex() { Position = xform(+s.X, +s.Y, +s.Z), Colour = c };
+            res[00] = v0; res[01] = v1; res[02] = v2; res[03] = v2; res[04] = v1; res[05] = v3;
+            res[06] = v2; res[07] = v3; res[08] = v6; res[09] = v6; res[10] = v3; res[11] = v7;
+            res[12] = v1; res[13] = v5; res[14] = v3; res[15] = v3; res[16] = v5; res[17] = v7;
+            res[18] = v6; res[19] = v7; res[20] = v4; res[21] = v4; res[22] = v7; res[23] = v5;
+            res[24] = v4; res[25] = v5; res[26] = v0; res[27] = v0; res[28] = v5; res[29] = v1;
+            res[30] = v2; res[31] = v6; res[32] = v0; res[33] = v0; res[34] = v6; res[35] = v4;
+            return res;
+        }
+        public EditorVertex[] GetPathVertices()
+        {
+            return null;
+        }
+        public Vector4[] GetNodePositions()
+        {
+            return null;
+        }
+
+        public override string ToString()
+        {
+            return Index.ToString() + ": " + FloatUtil.GetVector3String(Position);
+        }
     }
 
 }

CodeWalker.Core/Utils/TriangleBVH.cs

@@ -0,0 +1,218 @@
+using SharpDX;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace CodeWalker
+{
+    public class TriangleBVH : TriangleBVHNode
+    {
+
+        public TriangleBVH(TriangleBVHItem[] tris, int depth = 8)
+        {
+            if (tris == null) return;
+            var min = new Vector3(float.MaxValue);
+            var max = new Vector3(float.MinValue);
+            for (int i = 0; i < tris.Length; i++)
+            {
+                var tri = tris[i];
+                tri.UpdateBox();
+                min = Vector3.Min(min, tri.Box.Minimum);
+                max = Vector3.Max(max, tri.Box.Maximum);
+            }
+            Box = new BoundingBox(min, max);
+
+            Build(tris, depth);
+
+        }
+    }
+
+    public class TriangleBVHNode
+    {
+        public TriangleBVHItem[] Triangles { get; set; }
+        public TriangleBVHNode Node1 { get; set; }
+        public TriangleBVHNode Node2 { get; set; }
+        public BoundingBox Box { get; set; }
+
+        public void Build(TriangleBVHItem[] tris, int depth)
+        {
+            if (tris.Length <= 10) depth = 0;
+            if (depth <= 0)
+            {
+                Triangles = tris;
+                Node1 = null;
+                Node2 = null;
+            }
+            else
+            {
+                var min = Box.Minimum;
+                var max = Box.Maximum;
+                var cen = Box.Center;
+                var siz = Box.Size;
+                BoundingBox b1, b2;
+                if ((siz.X >= siz.Y) && (siz.X >= siz.Z))
+                {
+                    b1 = new BoundingBox(min, new Vector3(cen.X, max.Y, max.Z));
+                    b2 = new BoundingBox(new Vector3(cen.X, min.Y, min.Z), max);
+                }
+                else if (siz.Y >= siz.Z)
+                {
+                    b1 = new BoundingBox(min, new Vector3(max.X, cen.Y, max.Z));
+                    b2 = new BoundingBox(new Vector3(min.X, cen.Y, min.Z), max);
+                }
+                else
+                {
+                    b1 = new BoundingBox(min, new Vector3(max.X, max.Y, cen.Z));
+                    b2 = new BoundingBox(new Vector3(min.X, min.Y, cen.Z), max);
+                }
+                var l1 = new List<TriangleBVHItem>();
+                var l2 = new List<TriangleBVHItem>();
+                for (int i = 0; i < tris.Length; i++)
+                {
+                    var tri = tris[i];
+                    if (tri.Box.Contains(b1) != ContainmentType.Disjoint)// (tri.Box.Intersects(b1))
+                    {
+                        l1.Add(tri);
+                    }
+                    if (tri.Box.Contains(b2) != ContainmentType.Disjoint)// (tri.Box.Intersects(b2))
+                    {
+                        l2.Add(tri);
+                    }
+                }
+                if (l1.Count > 0)
+                {
+                    Node1 = new TriangleBVHNode();
+                    Node1.Box = b1;
+                    Node1.Build(l1.ToArray(), depth - 1);
+                }
+                if (l2.Count > 0)
+                {
+                    Node2 = new TriangleBVHNode();
+                    Node2.Box = b2;
+                    Node2.Build(l2.ToArray(), depth - 1);
+                }
+            }
+        }
+
+
+        public TriangleBVHItem RayIntersect(ref Ray ray, ref float hitdist)
+        {
+            if (ray.Intersects(Box) == false) return null;
+
+            TriangleBVHItem hit = null;
+            if (Triangles != null)
+            {
+                for (int i = 0; i < Triangles.Length; i++)
+                {
+                    var tri = Triangles[i];
+                    var v1 = tri.Corner1;
+                    var v2 = tri.Corner2;
+                    var v3 = tri.Corner3;
+                    if (ray.Intersects(ref v1, ref v2, ref v3, out float d) && (d < hitdist) && (d > 0))
+                    {
+                        hitdist = d;
+                        hit = tri;
+                    }
+                }
+            }
+            if (Node1 != null)
+            {
+                var hd = hitdist;
+                var h = Node1.RayIntersect(ref ray, ref hd);
+                if ((h != null) && (hd < hitdist))
+                {
+                    hitdist = hd;
+                    hit = h;
+                }
+            }
+            if (Node2 != null)
+            {
+                var hd = hitdist;
+                var h = Node2.RayIntersect(ref ray, ref hd);
+                if ((h != null) && (hd < hitdist))
+                {
+                    hitdist = hd;
+                    hit = h;
+                }
+            }
+
+            return hit;
+        }
+
+    }
+
+    public abstract class TriangleBVHItem
+    {
+        public Vector3 Corner1 { get; set; }
+        public Vector3 Corner2 { get; set; }
+        public Vector3 Corner3 { get; set; }
+        public BoundingBox Box { get; set; }
+
+        public Vector3 Center
+        {
+            get
+            {
+                return (Corner1 + Corner2 + Corner3) * 0.3333333f;
+            }
+            set
+            {
+                var delta = value - Center;
+                Corner1 += delta;
+                Corner2 += delta;
+                Corner3 += delta;
+            }
+        }
+        public Quaternion Orientation 
+        {
+            get
+            {
+                return _Orientation;
+            }
+            set
+            {
+                var inv = Quaternion.Invert(_Orientation);
+                var delta = value * inv;
+                var cen = Center;
+                Corner1 = cen + delta.Multiply(Corner1 - cen);
+                Corner2 = cen + delta.Multiply(Corner2 - cen);
+                Corner3 = cen + delta.Multiply(Corner3 - cen);
+                _Orientation = value;
+            }
+        }
+        private Quaternion _Orientation = Quaternion.Identity;
+        public Vector3 Scale
+        {
+            get
+            {
+                return _Scale;
+            }
+            set
+            {
+                var inv = Quaternion.Invert(_Orientation);
+                var delta = value / _Scale;
+                var cen = Center;
+                Corner1 = cen + _Orientation.Multiply(inv.Multiply(Corner1 - cen) * delta);
+                Corner2 = cen + _Orientation.Multiply(inv.Multiply(Corner2 - cen) * delta);
+                Corner3 = cen + _Orientation.Multiply(inv.Multiply(Corner3 - cen) * delta);
+                _Scale = value;
+            }
+        }
+        private Vector3 _Scale = Vector3.One;
+
+        public void UpdateBox()
+        {
+            var min = new Vector3(float.MaxValue);
+            var max = new Vector3(float.MinValue);
+            min = Vector3.Min(min, Corner1);
+            min = Vector3.Min(min, Corner2);
+            min = Vector3.Min(min, Corner3);
+            max = Vector3.Max(max, Corner1);
+            max = Vector3.Max(max, Corner2);
+            max = Vector3.Max(max, Corner3);
+            Box = new BoundingBox(min, max);
+        }
+
+
+    }
+
+}

CodeWalker/Project/Panels/EditYmapBoxOccluderPanel.Designer.cs

@@ -0,0 +1,166 @@
+
+namespace CodeWalker.Project.Panels
+{
+    partial class EditYmapBoxOccluderPanel
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(EditYmapBoxOccluderPanel));
+            this.GoToButton = new System.Windows.Forms.Button();
+            this.CenterTextBox = new System.Windows.Forms.TextBox();
+            this.label31 = new System.Windows.Forms.Label();
+            this.DeleteButton = new System.Windows.Forms.Button();
+            this.AddToProjectButton = new System.Windows.Forms.Button();
+            this.SizeTextBox = new System.Windows.Forms.TextBox();
+            this.label1 = new System.Windows.Forms.Label();
+            this.SinCosZTextBox = new System.Windows.Forms.TextBox();
+            this.label2 = new System.Windows.Forms.Label();
+            this.SuspendLayout();
+            // 
+            // GoToButton
+            // 
+            this.GoToButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
+            this.GoToButton.Location = new System.Drawing.Point(478, 6);
+            this.GoToButton.Name = "GoToButton";
+            this.GoToButton.Size = new System.Drawing.Size(68, 23);
+            this.GoToButton.TabIndex = 87;
+            this.GoToButton.Text = "Go to";
+            this.GoToButton.UseVisualStyleBackColor = true;
+            this.GoToButton.Click += new System.EventHandler(this.GoToButton_Click);
+            // 
+            // CenterTextBox
+            // 
+            this.CenterTextBox.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
+            | System.Windows.Forms.AnchorStyles.Right)));
+            this.CenterTextBox.Location = new System.Drawing.Point(82, 8);
+            this.CenterTextBox.Name = "CenterTextBox";
+            this.CenterTextBox.Size = new System.Drawing.Size(390, 20);
+            this.CenterTextBox.TabIndex = 86;
+            this.CenterTextBox.TextChanged += new System.EventHandler(this.CenterTextBox_TextChanged);
+            // 
+            // label31
+            // 
+            this.label31.AutoSize = true;
+            this.label31.Location = new System.Drawing.Point(4, 11);
+            this.label31.Name = "label31";
+            this.label31.Size = new System.Drawing.Size(41, 13);
+            this.label31.TabIndex = 85;
+            this.label31.Text = "Center:";
+            // 
+            // DeleteButton
+            // 
+            this.DeleteButton.Location = new System.Drawing.Point(183, 95);
+            this.DeleteButton.Name = "DeleteButton";
+            this.DeleteButton.Size = new System.Drawing.Size(95, 23);
+            this.DeleteButton.TabIndex = 107;
+            this.DeleteButton.Text = "Delete Box";
+            this.DeleteButton.UseVisualStyleBackColor = true;
+            this.DeleteButton.Click += new System.EventHandler(this.DeleteButton_Click);
+            // 
+            // AddToProjectButton
+            // 
+            this.AddToProjectButton.Location = new System.Drawing.Point(82, 95);
+            this.AddToProjectButton.Name = "AddToProjectButton";
+            this.AddToProjectButton.Size = new System.Drawing.Size(95, 23);
+            this.AddToProjectButton.TabIndex = 106;
+            this.AddToProjectButton.Text = "Add to Project";
+            this.AddToProjectButton.UseVisualStyleBackColor = true;
+            this.AddToProjectButton.Click += new System.EventHandler(this.AddToProjectButton_Click);
+            // 
+            // SizeTextBox
+            // 
+            this.SizeTextBox.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
+            | System.Windows.Forms.AnchorStyles.Right)));
+            this.SizeTextBox.Location = new System.Drawing.Point(82, 34);
+            this.SizeTextBox.Name = "SizeTextBox";
+            this.SizeTextBox.Size = new System.Drawing.Size(390, 20);
+            this.SizeTextBox.TabIndex = 109;
+            this.SizeTextBox.TextChanged += new System.EventHandler(this.SizeTextBox_TextChanged);
+            // 
+            // label1
+            // 
+            this.label1.AutoSize = true;
+            this.label1.Location = new System.Drawing.Point(4, 37);
+            this.label1.Name = "label1";
+            this.label1.Size = new System.Drawing.Size(30, 13);
+            this.label1.TabIndex = 108;
+            this.label1.Text = "Size:";
+            // 
+            // SinCosZTextBox
+            // 
+            this.SinCosZTextBox.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
+            | System.Windows.Forms.AnchorStyles.Right)));
+            this.SinCosZTextBox.Location = new System.Drawing.Point(82, 60);
+            this.SinCosZTextBox.Name = "SinCosZTextBox";
+            this.SinCosZTextBox.Size = new System.Drawing.Size(390, 20);
+            this.SinCosZTextBox.TabIndex = 111;
+            this.SinCosZTextBox.TextChanged += new System.EventHandler(this.SinCosZTextBox_TextChanged);
+            // 
+            // label2
+            // 
+            this.label2.AutoSize = true;
+            this.label2.Location = new System.Drawing.Point(4, 63);
+            this.label2.Name = "label2";
+            this.label2.Size = new System.Drawing.Size(56, 13);
+            this.label2.TabIndex = 110;
+            this.label2.Text = "Sin,Cos Z:";
+            // 
+            // EditYmapBoxOccluderPanel
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(553, 407);
+            this.Controls.Add(this.SinCosZTextBox);
+            this.Controls.Add(this.label2);
+            this.Controls.Add(this.SizeTextBox);
+            this.Controls.Add(this.label1);
+            this.Controls.Add(this.DeleteButton);
+            this.Controls.Add(this.AddToProjectButton);
+            this.Controls.Add(this.GoToButton);
+            this.Controls.Add(this.CenterTextBox);
+            this.Controls.Add(this.label31);
+            this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
+            this.Name = "EditYmapBoxOccluderPanel";
+            this.Text = "Box Occluder";
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.Button GoToButton;
+        private System.Windows.Forms.TextBox CenterTextBox;
+        private System.Windows.Forms.Label label31;
+        private System.Windows.Forms.Button DeleteButton;
+        private System.Windows.Forms.Button AddToProjectButton;
+        private System.Windows.Forms.TextBox SizeTextBox;
+        private System.Windows.Forms.Label label1;
+        private System.Windows.Forms.TextBox SinCosZTextBox;
+        private System.Windows.Forms.Label label2;
+    }
+}

CodeWalker/Project/Panels/EditYmapBoxOccluderPanel.cs

@@ -0,0 +1,162 @@
+using CodeWalker.GameFiles;
+using SharpDX;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace CodeWalker.Project.Panels
+{
+    public partial class EditYmapBoxOccluderPanel : ProjectPanel
+    {
+        public ProjectForm ProjectForm;
+        public YmapBoxOccluder CurrentBoxOccluder { get; set; }
+
+        private bool populatingui = false;
+
+
+        public EditYmapBoxOccluderPanel(ProjectForm owner)
+        {
+            ProjectForm = owner;
+            InitializeComponent();
+        }
+
+
+        public void SetBoxOccluder(YmapBoxOccluder box)
+        {
+            CurrentBoxOccluder = box;
+            Tag = box;
+            LoadBoxOccluder();
+            UpdateFormTitle();
+        }
+
+        private void UpdateFormTitle()
+        {
+            Text = "BoxOccluder: " + (CurrentBoxOccluder?.Index.ToString() ?? "(none)");
+        }
+
+
+        private void LoadBoxOccluder()
+        {
+
+            if (CurrentBoxOccluder == null)
+            {
+                ////Panel.Enabled = false;
+                AddToProjectButton.Enabled = false;
+                DeleteButton.Enabled = false;
+                CenterTextBox.Text = string.Empty;
+                SizeTextBox.Text = string.Empty;
+                SinCosZTextBox.Text = string.Empty;
+            }
+            else
+            {
+                populatingui = true;
+                var b = CurrentBoxOccluder;
+                ////Panel.Enabled = true;
+                AddToProjectButton.Enabled = !ProjectForm.YmapExistsInProject(CurrentBoxOccluder.Ymap);
+                DeleteButton.Enabled = !AddToProjectButton.Enabled;
+                CenterTextBox.Text = FloatUtil.GetVector3String(b.Position);
+                SizeTextBox.Text = FloatUtil.GetVector3String(b.Size);
+                var dir = b.Orientation.Multiply(Vector3.UnitX) * 0.5f;
+                SinCosZTextBox.Text = FloatUtil.GetVector2String(new Vector2(dir.X, dir.Y));
+                populatingui = false;
+
+                if (ProjectForm.WorldForm != null)
+                {
+                    ProjectForm.WorldForm.SelectObject(CurrentBoxOccluder);
+                }
+
+            }
+        }
+
+        private void UpdateGraphics()
+        {
+            if (CurrentBoxOccluder == null) return;
+            if (ProjectForm?.WorldForm == null) return;
+
+            ProjectForm.WorldForm.UpdateBoxOccluderGraphics(CurrentBoxOccluder);
+        }
+
+        private void GoToButton_Click(object sender, EventArgs e)
+        {
+            if (CurrentBoxOccluder == null) return;
+            if (ProjectForm?.WorldForm == null) return;
+            ProjectForm.WorldForm.GoToPosition(CurrentBoxOccluder.Position, CurrentBoxOccluder.Size * 2.0f);
+        }
+
+        private void AddToProjectButton_Click(object sender, EventArgs e)
+        {
+            if (CurrentBoxOccluder == null) return;
+            if (ProjectForm == null) return;
+            ProjectForm.SetProjectItem(CurrentBoxOccluder);
+            ProjectForm.AddBoxOccluderToProject();
+        }
+
+        private void DeleteButton_Click(object sender, EventArgs e)
+        {
+            ProjectForm.SetProjectItem(CurrentBoxOccluder);
+            ProjectForm.DeleteBoxOccluder();
+        }
+
+        private void CenterTextBox_TextChanged(object sender, EventArgs e)
+        {
+            if (populatingui) return;
+            if (CurrentBoxOccluder == null) return;
+            var v = FloatUtil.ParseVector3String(CenterTextBox.Text);
+            lock (ProjectForm.ProjectSyncRoot)
+            {
+                if (CurrentBoxOccluder.Position != v)
+                {
+                    CurrentBoxOccluder.Position = v;
+                    UpdateGraphics();
+                    ProjectForm.SetYmapHasChanged(true);
+                    ProjectForm.WorldForm?.SetWidgetPosition(v);
+                }
+            }
+
+            ProjectForm.ProjectExplorer?.UpdateBoxOccluderTreeNode(CurrentBoxOccluder);
+
+        }
+
+        private void SizeTextBox_TextChanged(object sender, EventArgs e)
+        {
+            if (populatingui) return;
+            if (CurrentBoxOccluder == null) return;
+            var v = FloatUtil.ParseVector3String(SizeTextBox.Text);
+            lock (ProjectForm.ProjectSyncRoot)
+            {
+                if (CurrentBoxOccluder.Size != v)
+                {
+                    CurrentBoxOccluder.SetSize(v);
+                    UpdateGraphics();
+                    ProjectForm.SetYmapHasChanged(true);
+                    ProjectForm.WorldForm?.SetWidgetScale(v);
+                }
+            }
+        }
+
+        private void SinCosZTextBox_TextChanged(object sender, EventArgs e)
+        {
+            if (populatingui) return;
+            if (CurrentBoxOccluder == null) return;
+            var v = FloatUtil.ParseVector2String(SinCosZTextBox.Text);
+            float angl = (float)Math.Atan2(v.Y, v.X);
+            var q = Quaternion.RotationYawPitchRoll(0.0f, 0.0f, angl);
+            lock (ProjectForm.ProjectSyncRoot)
+            {
+                if (CurrentBoxOccluder.Orientation != q)
+                {
+                    CurrentBoxOccluder.Orientation = q;
+                    UpdateGraphics();
+                    ProjectForm.SetYmapHasChanged(true);
+                    ProjectForm.WorldForm?.SetWidgetRotation(q);
+                }
+            }
+        }
+    }
+}

CodeWalker/Project/Panels/EditYmapBoxOccluderPanel.resx

@@ -0,0 +1,409 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <assembly alias="System.Drawing" name="System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+  <data name="$this.Icon" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+    <value>
+        AAABAAMAICAAAAAAGACoDAAANgAAABAQAAAAABgAaAMAAN4MAABAQAAAAAAYACgyAABGEAAAKAAAACAA
+        AABAAAAAAQAYAAAAAAAADAAAAAAAAAAAAAAAAAAAAAAAAP//////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        //////////////////////////////////////v8/u3v+Pn6//7+////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        //7+/vX3/rzA3OHl9fz9////////////////////////////////////////////////////////////
+        //////////////////////////////////////////////////7//+zv+3Z6qcLI5Pr7////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        //////////////////7+/+br+15in6+33vf5//////////////////7+//7+////////////////////
+        //////////////////////////////3+//v8//v8//3+//////////////////////7+/+Ho+1dana20
+        4/b4//////////z9//P2/+Tp/ezw/vz9//////////////////////////////////////////7///X4
+        /9Pa+tPa+/H1//z9//////////////////7+/93k+SsscaSr3PX3//////7+//L1/7W98AcWgrvC8Pj6
+        //////////////////////////////////////////7+/+bs/xohiAEJdrvF9+7y//z9////////////
+        //7+/9rh+CEkapmh0/T3//////j6/9HZ/AEHcgEEb9LZ+/r7////////////////////////////////
+        //////////7//+/z/3F+zAAAXwQLcZai3fb4//////////////3+/97l/E9Tmaau4fT3/////+/0/1dd
+        sAAAV7a/8/H1//7+//////////////////////////////////////////////r8/+jv/46Y3QUUf6Ot
+        5PX4//////////////3+/9zj+3Z6wLe/7fX4//////D0/212xnaAzerw//z9////////////////////
+        //////////////////////////////////v8/+/z/+Dm+/D0//z9//////////7+//j6/9Pd+UhLjb/H
+        9/D0//3+//n7/+nt/+jt//n7////////////////////////////////////////////////////////
+        //7///7+//7+//7+//////////r8/+7z/83W+ImU2A0UdFNarr/K9env//X4//z9//3+//7/////////
+        //////////////////////////////////////////////////////////////////7///j6/+Pq/255
+        xhckjE5XsVVftUlTqwAKeTA9nr3H8+7z//v8////////////////////////////////////////////
+        //////////////////////////////7+//b4/9Tc+Sc0mRonj8rV/crX/ZSb48rX/brG8wwWgQAEdJei
+        4efu//n7//7+//z9//z9//z9//z9//3+//////////////////////////////3+//f5/+3y/+nv/+ft
+        /8vV+io2mImU2M7c/7vG9yIvlQAOfCg4mM3Y/s/c/4aR1AQRfGtzwtni/ebt/9vi/tri/tXd+9Tc+O3x
+        /vz9//////////////////////////n6/87V+FVftkRPrFlnvSEqjQoUfmJvwWFvvg0TfQQIcxEchwAD
+        cy89n19rvVVitQwZgwAAaiMrkT9NqTVBoiw3mhQihig1mNLX+fv8//////////////////////////b5
+        /52l4EFLqoCK03yF0VBctGhyw52o5GVrvQAAaneBzsHM+jA3mhYgiTtIpJOf3ouW2AAAbmh0wbbA8bS+
+        7qiz5pCb16+56e/z//3+//////////////////////////v8//H1/+vw/+zx/+nv/7/J9YqP3MbP/8LM
+        +hwqkFZftaCp5EhRrcTQ+9jj/8rW/UJMqn6J0ebt//X3//f5//b4//X3//f5//z9////////////////
+        //////////7+//z9//3+//////////3+/+7z/6at64iP3aWs7XN8zRIfhyUykp2o5MHM+oKM0xonjY6X
+        2+jv//v8//////7+//n7//b5//r7//7///////////////////7+//f5/+rw/9Pa9fL0/v7/////////
+        //v8//H1/+Tr/7i/91liu0NPq0VQrS06m0NNqDdCoYqU1+nv//v8//////////n7/9zi/qSt59ri/fL1
+        //v8//7///////z9//D0/8rT+h0sjkVQrPD0//////////////////////z9/+7z/8LL9Jqk4aGq6LW/
+        8c3W9+Xs/vH1//v8//////////////f5/6at5gAAbxIfh6u16+Po/fr7//////b5/6ev5gAIeAAPernC
+        8fX4//////////3+//v8//z9//////3+//j6//P3//P2//b4//r8//7+//7+//v8//r8//3+//////v8
+        /+Xr/nuIzwAAbBseg5Sb2fb5//////f5/8DF8pWe3d/n/vT3//39//////v8/+zx/87V9+3x/v3+////
+        //3+//j6//X4//v8//////////n7/+Dm/snR9fD0//39//z8/fv8/+3y/8LK9aGq4dfd9/n7//////z9
+        //b5//X4//v8//////////7+/+7z/4aP1gEPet7k/f39//////f5/83U+ZCZ2u3x/v7+//////P3/215
+        wgAJd7fB8/L1//7+//////3+//j6//f5//r8//7+//////////////////////////////j6/87W/AAA
+        X2duue3y//7+//////D0/05asBQfidzj/P39//////X4/6Su6AAAXBccgtff/vv8////////////////
+        //////////////////////////////////////P3/3F8xhYli9Xe/fn6/////////+3y/1pltQAJd9be
+        /fv8//////z9/+rw/36I0Bknjs/W+vv8////////////////////////////////////////////////
+        //////f5/8HI7tnf+/X4//7+/////////+/0/3R7xgAAb9ng/Pz9//////////n7/+Ln/dLY+fP2//3+
+        //////////////////////////////////////////////////////3+//r7//v8//7+////////////
+        //b4/7/F84eP0e/0//7+//////////7+//z9//v8//3+////////////////////////////////////
+        //////////////////////////////////////////////////z9//b5//X4//v8////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        //////////////////////////////////////////////////////////////////////////w////4
+        P///+D////g8//D4MH/geCB/4Dggf+A4IH/wOCD/+DAB//hgAf//gAP//wAAB/AAAAPwAAAD8AAAA/AA
+        AAfjAAEHgYADAQPgBwEDEAEBAghgAQwIIEH8CCB//Bggf/wYMH/8ODD///h/////////////KAAAABAA
+        AAAgAAAAAQAYAAAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
+        AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP///+vv/fL1/v///wAAAAAAAAAA
+        AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP///4+Vx7/F5v///wAAAAAAAAAAAAAAAAAAAAAAAAAA
+        AAAAAAAAAAAAAAAAAAAAAP///4CHtrS62////////////////////wAAAAAAAAAAAP////H0/vf6/v//
+        /////////4yTwrrB4f///+zw+7rA6P39/////wAAAAAAAAAAAP///56l2BkcguXr/P///////42Uw8jO
+        6P///ysvjWVqtP///////wAAAAAAAAAAAP////D0/0hPpsDG6////////6y02d7k8////3qAx+/z/f//
+        /wAAAAAAAAAAAAAAAAAAAP///////////////8zT8V5ns1Rcrdzh9f///////////wAAAAAAAAAAAAAA
+        AAAAAP////////7+/6ix3nmBxFthtmdwu09WqbC54/v9//r8//j6//39/wAAAAAAAAAAAOjt/H6I0FJc
+        skpSqHF+wRMahFZhs4iT1AsNc1pgrm52v2RsuO/z/gAAAP////////L2/cLJ7rrD64+V4DY+ozU+mYmU
+        0X2Hy1hfss7V8urv/PP2/v///wAAAP///+Pp+d/k9////////+Pp/4uR3ysymW14xYOM0fD0/P///+Xq
+        +ri/6Pj6/wAAAOrv/j5DnbS75P////////////X4/+/0/ubr+/r7/////////9rh+hgZhKGo2QAAAPDz
+        /eLn+f////j6/2Nqttrg9////+Hn+P3+//3+/1hescLJ6/////L2/eru/AAAAAAAAAAAAP///8rR70tR
+        p/3+//v8/zY6jNPY7////09WqWpwu////wAAAAAAAAAAAAAAAAAAAAAAAPb4/vr7//////v8/5Wd1eHm
+        +P////v8//T3/wAAAAAAAAAAAAAAAP//AAD8PwAA/D8AAPwDAACAAwAAgAMAAIAHAADABwAAwAEAAMAB
+        AAAAAQAAAAEAAAABAAAAAQAAwAcAAOAPAAAoAAAAQAAAAIAAAAABABgAAAAAAAAwAAAAAAAAAAAAAAAA
+        AAAAAAAA////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////////////////////////////////////////////////////////////v7//f7//P3//P3//P3/
+        /f7//v7/////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////////////////////////////////////////////////////////////////////////v7//P3/
+        +fv/+fv/+Pr/+fv/+vv//P3//v//////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////////f7/+fr/8/b/7PL/5+3/6e/+9Pf/+vv//v7/////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////////////////////////P3/9/r/6O7/cXe1UVaet7z17fL/+Pr//f3/////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////+/z/9Pj/4Oj/NzyCUlOd2dz/6O//9Pf//P3/////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////+vv/8vb/2+P9X2OmREGLnqPd
+        4+v/8vb/+/z/////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////+vv/8fb/
+        1N35bXK1JSRtbHGz5O7/8fX/+/z/////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////+vv/8PX/3Ob/U1eaDwtXjZLT4+z/8fX/+/z/////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////+vv/8fb/2eP+MjR6AAA+c3i34Or/8fX/+/z/////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////+vv/8vb/1d/7MS91AAA1UFSS4On/8vb/+/z/////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////+vv/8fb/2OL+NjZ7AAArX2Ok
+        4uz/8fX/+/z/////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////+vv/8fb/
+        2eP/LjJ1DAxKfYTE4Or/8fX/+/z//////////////////////////////v7//v7//f7//f7//v7//v//
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////+vv/8PX/3OX/gILIR0eVeoHC3eb/8fX/+/z//////////////////////v7//P3/+fv/+Pr/
+        +Pr/+Pr/+vv//P3//v7/////////////////////////////////////////////////////////////
+        /////////////////////////////v7//f7//P3/+vv/+vv/+/z//f3//v7/////////////////////
+        ////////////////////////+vv/8PX/2eP9ZWeqHx1obnOz4Or/8fX/+/z//////////////////v7/
+        +/z/9fj/8vb/8PX/7vT/8fb/9fj/+fr//f7/////////////////////////////////////////////
+        /////////////////////////////////////////v///P3/+Pr/9fj/9fj/9Pj/9Pf/9vn/+/z//v7/
+        ////////////////////////////////////////+vv/8fb/2eP9ODp9AAA5jZDQ5O7/8PX/+/z/////
+        /////////v7/+/z/9Pf/7fP/5u//wsz6j5XfuMDx7fL/9vn//P3/////////////////////////////
+        /////////////////////////////////////////////////////////f7/+Pr/8/b/5+3/2eH/2uP/
+        5u3/7fP/8/b/+vv//f7/////////////////////////////////////+vv/8PX/3ef/U1ebBgVKio/O
+        4uz/8fX/+/z//////////v///P3/9fj/7fP/4uv/hIzZHSWPAABmU1i14ub/9/r/+/z/////////////
+        /////////////////////////////////////////////////////////////////////////P3/9Pf/
+        7/X/09z/TlSzNzWYj5bh5O7/6/L/8vb/+fv//f7/////////////////////////////////+vv/8fX/
+        2eP/QUWIEhBZbnSz3uj/8fb/+/z//////////f7/+Pr/7/T/6PH/iI7cAABvAABqAABncXjK6O//9fj/
+        +/z/////////////////////////////////////////////////////////////////////////////
+        ////////+/z/8/f/2uD/Z27EAABnAABiBgl4jJTd5vD/6O//8vX/+fv//f7/////////////////////
+        ////////+vv/8fb/2OP/Mjd6AQE6ZGup4er/8fX/+/z/////////+vz/8fX/6/T/xM/8ExyJAABwAABu
+        GySRxc387fT/9ff//P3/////////////////////////////////////////////////////////////
+        ////////////////////////+vz/8/f/1Nr/MzqhAABhAxOBAARyBgp5jpLg5Oz/7PP/9Pf/+vz//v7/
+        ////////////////////////+vv/8fb/2eP/KCtvBwZOjJHS4Or/8fX/+/z//////f7/9/n/7fP/3+j/
+        UFq3AABtAAZ3BAh6mZ/n5vD/7vP/+Pr//v7/////////////////////////////////////////////
+        ////////////////////////////////////////+/z/9Pj/6e//sbb1KzWcAABwBhaBAAFyAgp6fITR
+        1d777/T/+Pr//f7/////////////////////////+vv/8PX/3+j/WF2hBglTnaTj5O3/8PX/+/z/////
+        /P3/9Pf/6vL/k5riAAByAAR0AABrY2vE4ur/6vH/9ff//P3/////////////////////////////////
+        /////////////////////////////////////////////////////////f3/9/n/7fL/5O3/ytX/RU6w
+        AABpAA5+AABuAABnhord6e7/+fv//f7/////////////////////////+vv/7/T/3+j/k5jbT1KdgYjJ
+        3uf+8fX/+/z/////+/z/9fn/4ef/NDqhAABnAABrJjCU0Nn/5/D/8fX/+vv//v7/////////////////
+        /////////////////////////////////////////////////////////////////////////v7/+/z/
+        9vn/7vP/6vP/ztb/O0CmAABpAABrQkuoxMn57PH/+Pr//f7/////////////////////////+vv/8PX/
+        2+X/en/CUFGak5nY3+j/8fX//P3//////P3/9fj/4en/i5DbNT2hIyuTpqzv4uz/7vP/9/n//f7/////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////////////v7//P3/9vn/7/P/6vL/ytH/X2i9XWi7wsf/6e//8/f/+Pr//v7/////////////////
+        ////////+vv/8PX/3OX/WF2hW1ylvMD+3uf/8PX/+/z//////f7/9vn/7fP/4uj/j5Pgf4LV3+X/6fD/
+        9Pf//P3/////////////////////////////////////////////////////////////////////////
+        /////////////////////////////////v///P3/+Pr/8vX/7fP/5+//5u7/6vD/8PT/9vn//P3//v7/
+        /////////////////////f7/9/n/7fP/0tz9LDJzNjh/nqTk2uT/7fL/9/n//f7//f7/+fv/8/b/7PL/
+        3eX/zM//5ev/9fj/+fv//v7/////////////////////////////////////////////////////////
+        /////////////////////////////////////////////////////v///f3/+vv/9/n/9vn/9fj/9vn/
+        +fr//P3//v7//////////////v///f7/+vv/9vn/7/T/5vD/2Ob/VFubERNdoajk4u//5O7/7vP/9vj/
+        +fr/+vv/+Pr/9fj/9Pj/9fj/9fj/+Pr//P3/////////////////////////////////////////////
+        /////////////////////////////////////////////////////////////////////////v///v7/
+        /f7//P3//P3//f3//v7//v///////////////f7/+vz/9vn/8fX/7vT/5O3/3eb/z9n/cHjICxN5d37L
+        z9n/2eP/5O3/6/L/8PT/9Pf/9/n/+vv/+vv/+/z//P3//f3//v7/////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////////////////////////////////////////////////P3/+Pr/8/b/7vT/6vL/z9r+jZjeQUeq
+        IiuQCBN3AAFrBRB8Nj2iUViym6XlydH/4+z/6/L/8PT/9/n/+/z//f7//v//////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////////////////////////////////////////////////////////////f3/9/n/8fX/6/L/3uf/
+        mKTkLzibAABoAAB0Fx+HDBh7FSGDAg16AABYAABlCBB/Ji2UhYza1+D/6PL/7fL/9Pf/+vv//f7/////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////////////////////////////////////////////////////////////////////v7//P3/9/n/
+        8PT/7PT/z9j/XmO+AABtAABcMDSXoajsu8X7VV+5hYzblZ/fTVSxFSKMAABkAABnAAN2Qkmpsbrz5e3/
+        6vH/8fX/+Pr//P3//v//////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////P3/9/n/8PX/7PT/vcn3LTOZAABaAgR1ZWzD0Nf/5vL/1OP/l53lzs3/6fP/4+7/sLzwZ23CBxSD
+        AABnAABlHiaSmqHo3+j/5+//7/T/9vn//P3//v7/////////////////////////////////////////
+        /////////////////////////////////////////////////////////////////////////////v7/
+        /v7//v7//v7//f7/+/z/9vj/7vP/7PX/tcLzEBeGAABkPEWlqLPt2eX/4e7/3On/uMX1gofVe3vPhYzY
+        z93+5/X/4e3/lJ3gHiOPAABtAABqChiEbHLIytD/5/D/7PL/8/f/+Pr/+fr/+Pr/+Pr/+Pr/+Pr/+Pr/
+        +Pr/+fv/+vv/+/z//f7//v7/////////////////////////////////////////////////////////
+        /v7//f7/+/z/+fv/9/n/9vj/9fj/9Pf/8fX/7PL/4uv/l6HgDhF7AAN4iZDe0d7/3uz/4vD/w83/VVm3
+        ICiSAAFyAABlAABwaHTD1N//2un/3er/w838ZW3BEyOJJzKVAQ16NDmfwsn75fD/5u7/7PL/7vP/7fP/
+        7fP/7fL/7fP/7vP/7/T/8fb/9Pj/9vn/+fr//f3//v//////////////////////////////////////
+        /////////////v7//P3/+Pr/9Pf/8fX/7vT/7PL/6/L/6fH/5u7/6vX/tsD0CQx4AAFwkZvi7ff/4vD/
+        4fD/z9j/OkGlAABiAABwBxWAAAt7BBN+P0uofYLUztb/4O7/6fb/6fP/qa7xQkyoBg56AABqMjugx8/+
+        5fH/4Ov/4On/3uj/3eb/3+j/3uj/1+L/0d3/1d7/3+f/7fL/9vj/+vz//v7/////////////////////
+        /////////////////////////////f7/+fr/8/f/6/L/2d//v8j6vcf5ucP1wMv8wM3+vMj6PkqoAABo
+        UF25usP7tsPyvsr6sLrwQ0utAABqAAV1OUameIDRKDWZAAd2GyeOLDecmaHntsL0pbLom6riq7LzUlu0
+        AANzBhR/AAZ0NT+ja3bBY2i/XGG6UViyWl65XGG7XGC6TVWvQU6pPkalODygqK7p8vb/+vz//v7/////
+        /////////////////////////////////////////////P3/9/n/7/T/wcj2R0ysExeFERmGDxuIFB6K
+        FBqICxSEAABsAAByDBiDCRSBBRCADhaFCRODAAh4AxF/AAl4CxeDHSaPAAp6AAN0AA19AAd3CBOBEBqH
+        BhGBAAh5AABwAAByAAh5BhSCAxWCAABsAABvAABlAABnAABxAABjAABmAABhAABdAABYAABhCAt/q7Lr
+        8/f/+vv//v7//////////////////////////////////////////////////P3/+fv/3uT/SE2vAABn
+        CBB/GiCMLzmfLTWcGByJFRyKGCOOMj2gHymRDxiGGyOPLDCXBRF/AAh3BhaCEyKMICqTKC2WNDqfIzCV
+        Awx6Eh+JHiaPAAR3AAZ5CxSDICWQX2q7Q1CqAA1+AAFxDxuHiZTbVGC4dHnQnabrTVqzY23EUV62Slau
+        LjaZXWm9sLjz5ez/9vn/+fv//v7//////////////////////////////////////////////////P3/
+        +Pv/4+n+e4LPfoPVpqv2vsf/zNX/zdb/xtH/v8v8pK7spKfysLb3vcr4ws784ej/hI/YAAZ1AAJzVF25
+        yM//3Of/5+//i5LcAABpMzyfp6vxoKznlqHhqbbtx9H/8fz/kpvfAABiAABph4zc5PD/2OP/193/3un/
+        1+D/2OH/1+D/0Nr/zNL/3+j/6/L/7/T/9vn//P3//v//////////////////////////////////////
+        /////////////f7/+Pr/9Pf/6vD/5u3/3+b/4uv/6PD/5+//5O3/5/P/sL3sXmS7mZzoz9f/3+z/4e//
+        mKLiEiKKCBF/KTWZr7T06/f/3ev/VF2zChSBipPcz9v+4u7/3ur/3ev/5/X/qrPrISmSDRJ2Xmq/3ur/
+        4uv/6vH/7fP/7fL/7/T/7vP/7fP/7fP/8PX/8fX/9Pf/+Pr/+/z//v7/////////////////////////
+        /////////////////////////////v7//P3/+Pr/9vn/9Pf/8vb/8vb/8/b/9Pf/7/T/6/L/tL/ubXLH
+        en/Ti43gqavy0t3/nafjMj6fJzaaAAV1GyeOYmW7Nz6fAABgNj6i1N//3uz/2uX/3Oj/5PH/wcj7FR2J
+        AAN0gong0tr/6fH/7/P/9vj/+Pr/+fv/+fv/+Pr/+Pr/+Pr/+fv/+vv//P3//f7//v//////////////
+        /////////////////////////////////////////////////v7//f7//P3/+/z/+/z/+/z//f3//f7/
+        +fv/8fX/5Oz/jpbfc3jObnXLcXfOk5rks7b4iY3dR1KvDhuEAABoAABlEBV9U12ytcD13Or/3en/3ej/
+        1eL/q7fvGR+MKDKZbnnNxc/76PD/8fX/+fr//f7//v///////v7//f7//f3//P3//f3//f7//v//////
+        /////////////////////////////////////////////////////v7//f7//P3//P3//f7//v7/////
+        /////////////////f7/9vn/7/T/yNH5lJrleoDVmZ3pmpzpc3nPfoTWf4bYVFy3HSaLZ3PGsrb8v8r8
+        y9n9q7jre4LRf4fUgIvXAwZ1AABrhYjb0NX/6PH/8PX/+Pr//f7//////////v///f3/+vv/+Pr/9/r/
+        9/n/+Pr/+/z//f7//v7//////////////////////////////////////v///f7/+/z/+fr/9vj/9/n/
+        +vz/+vv/+/z//v7//////////////////v7/+vz/8/f/7PL/2uT/t8H1srP6vcH+nKTnSlOxV2C7TVaz
+        WGS8QUqmSlSuSFOtR1GtbXTKVl23ARB5AAh2AABnd33P3eP/4ur/7/T/9/n//P3//////////////P3/
+        9/n/8vb/7PH/6fD/7PL/7vP/8vb/9vn/+/z//f7//////////////////////////////v7/+/z/+Pr/
+        8/b/7/T/8Pb/6vH/3eP97vL++fr//P3//////////////////////f7/+vv/9fj/7/T/5+//z9f+t7v4
+        uLn9Z2zFLzucFCGIMz6gGCCMAAd4AAl2Dx2EER+GXWK8c3XLKzKXd4LP4er/6/L/8PX/9/n//P3//v//
+        /////////v7/+fv/8/b/7PP/y9H/i4/erLbt4er/5e3/7fP/8/b/+fv//f3//v7/////////////////
+        /v7/+/z/9vj/8PT/6/L/3+n/x9H9aHTAZGvG3+b9+Pr/+/z//////////////////////////v7/+/z/
+        +Pr/8vb/6/H/3OX+wMn4maDmdHrPWGG6T1a1eoHWcHfOTlayUlq1SlKubHjAxMj/0dn/4+v/7PL/8vb/
+        +Pr//P3//v7//////////////f7/+fr/7vP/xsv5YGXAHymRKjKYYWS9rbLz4u3/6/P/8vb/+fr//f7/
+        /////////////v//+/z/9vj/7fL/5e3/xs7/Y23BIiiSAABeLTab3+b/9/r/+/z/////////////////
+        /////////////////f7/+vz/9vj/8PX/6vH/3eb/ydL8xM/6uMPyt733w8j/zNb/1Nz/3OT/4uz/5u7/
+        7fP/8vb/9vj/+vz//f7//////////////////////f7/+fv/7vP/jpHiAAJ1CxaBER6GAABoFRmGbXbH
+        0Nf/7PL/9fj//P3//////////////v7/+fv/8/f/4Of/hYvbKDGZAABuAABdAAZyi5La5+7/9vn/+/z/
+        /////////////////////////////////////v7//P3/+fv/9ff/8vb/7/X/7fP/6/L/5u3/5ez/6fD/
+        7PP/7/T/8fX/9Pf/9/n/+vv//P3//v7//v///////////////////////v7/+fv/8fb/2eH9fIbQExqH
+        AABrAAp6AAFyAABwS0+uztX39vn/+vz//////////////f7/+Pr/8ff/qbLpAABrAABhAABwDBWAfobX
+        5e3/8PX/9vn//f3//////////v///f7/+/z/+vv/+vv/+vz//P3//v7//v///v7//P3/+vz/+Pr/9/n/
+        9vj/9vj/9vj/9vj/9/n/+fr/+/z//P3//f7//v7//f7//P3/+/z/+vz/+/z//P3//v7//////v7/+/z/
+        9fj/7/T/5/H/uML1U1e1AAh5AABuAABvMjmdv8bz9vr/+vv//////////////f7/+fv/7/T/iY7aDxSA
+        GiONa3XHsr7w4Oj/6/H/9Pf/+vz//v7//////v///P3/+Pr/9Pf/8/f/9fj/9fj/9vn/+/z//v7/////
+        /////////v7//f7//P3/+/z/+/z//P3//f7//v///////////////v7/+/z/9/n/9vn/9vn/9Pj/9vn/
+        +/z//v7//////f7/+vz/9fj/7/T/6vL/3ef/i5PbGRqJBQl5jJbZ6vH/9Pj/+/z//////////////f7/
+        +fv/8fT/1Nn9t7/0wcr54er/7fT/8fX/9fj/+vv//f7//////////f3/+Pr/8PT/6/L/3uX/ztb/5Or/
+        8/f/+Pr//f7//////////////f7/+vz/+Pr/+fv/+fv/+vv//f3//v///////////////P3/9/n/7vL/
+        193/ztf/5u3/7vP/9Pf/+/z//v7//////v7//P3/+Pr/8fX/7PP/5/D/sLfxoKnk4+r/8vf/9/n//f3/
+        /////////////v7/+/z/9vn/9Pf/8vb/8fb/8fX/9Pf/+Pr//P3//v7//////////v7/+vv/8vb/5+7/
+        y9H/WWO9KSmSkZXj6vD/+Pv//P3//////////f7/+Pr/9fj/8vb/6O7/7vP/9fj/+Pr//f7/////////
+        /v//+vv/8vb/7PP/hYraKiqKlp7i6PD/7fP/9ff/+/z//v7//////////f7/+vv/9ff/8fX/8PX/8vb/
+        8/f/9vn/+/z//v7//////////////////f7/+/z/+vv/+fr/+fr/+vv//P3//v7/////////////////
+        /P3/9fj/7PL/1d7/RUysAABhAABlg4ja6/D/+Pr//P3/////////+/z/9fj/6e7/2eD/h4/bnaXg7PH/
+        9fj/+/z//////////v7/+Pr/8PX/y9X1JDGVAABaERWDoKnp6PH/7vP/9/n//P3//////////////v7/
+        /P3/+vv/+fv/+fv/+vv//P3//v7//////////////////////////v7//v7//v7//v7//v//////////
+        /////////////v7/+fv/8PX/7PX/ipPdAABsAABlQ1Cp3Ob/7vP/9/n//f7/////////+fv/9Pj/yNH5
+        Ule2DBJ8Ljie0df+8fb/+fv//v7//////v7/+Pr/7/X/hY3YAABxAAl7AABuEBaEs7nz6fH/8fX/+vv/
+        /v7//////////////////v///v7//v7//v7/////////////////////////////////////////////
+        /////////////////////////////f3/9vn/7PL/0tn/LzidAQFsAAB0iZHb6vP/8PT/+fv//v//////
+        /v7/+Pr/8vf/r7rqAAV4AABdPUen1N//7PL/9vn//f7//////v7/+fr/7/T/yc75S1G0AABrARKAAABp
+        Qker0df/7fP/9/n//f7/////////////////////////////////////////////////////////////
+        /////////////////////////////////////////////P3/9/n/5+7/cXXNAAd2AABuMDebzdT97PL/
+        9vj//P3//////////v7/9/n/7/X/tL/uFCCLAABqHSqRvcf46fD/9Pf//f3/////////+vv/8vX/6vH/
+        yM3+JC2XAABtAAV2Agx9q7Ly7vT/9vn//f7/////////////////////////////////////////////
+        /////////////////////////////////////////////////////////////P3/9/r/4uj/WWO1AAVx
+        KTaYu8T07fT/8vb/+vv//v7//////////v7/9/n/7vX/vsn1Iy2SAABrAQ99mp/o6PD/9Pf//P3/////
+        /////P3/9/n/7vP/6fL/s7z2DBB/AABeQ0uttrr56e7/+Pr//f7/////////////////////////////
+        /////////////////////////////////////////////////////////////////////////////P3/
+        +fv/4ef6g4zNbXfFw8v27fT/8vb/+Pr//f3//////////////v7/9/n/7vT/yNL7MjucAABtBxF/nKLo
+        6fH/9Pf//P3//////////v7/+/z/9fj/7fL/6/T/jZXbLzScrrP14en/7fL/+fv//v7/////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////////////f7/+vz/8PP91dr34+f/8vb/8/f/9/r//P3//v///////////////v7/+Pr/8PX/1N3/
+        QUqmAQRxBQ98m6Dm7PL/9fj//P3//////////////v7/+/z/9ff/8PX/5ez/ytH94ej/8vb/9vj/+/z/
+        /v7/////////////////////////////////////////////////////////////////////////////
+        /////////////////////////////v7//P3/+vz/+fv/+Pr/+Pr/+vv//f3//v//////////////////
+        /v//+fv/9Pf/2+L/SVGtAABsLTaZytL58fX/9/n//f7//////////////////v7/+/z/9/n/9fj/9vn/
+        9fj/9vj/+vz//f7/////////////////////////////////////////////////////////////////
+        /////////////////////////////////////////////////v7//f7//f3//f3//f3//v7//v//////
+        ////////////////////+/z/9vn/6e//mZ7gTVarr7bp6/H/9fj/+vv//v7/////////////////////
+        /v7//f7/+/z/+/z/+/z//P3//v7/////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////////////////////////////////////f3/+Pr/9fj/6e7/4+n/8fb/9Pf/+Pr//f3/////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////////////////////////////////////////////////////v7//P3/+fv/+fv/+vv/+Pr/+vv/
+        /P3//v7/////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////////////////////////////////////////////////////////////////////////v7//f7/
+        /f3//P3//f7//v7//v//////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ///////4D/////////AH////////8Af////////wB/////////AH////////8Af////////wB///////
+        //AH////////8Af////////wB/////////AH////////8AfwP//////wB8Af//+Af/AHgB///wA/8AcA
+        H///AB/wBgAf//8AD/AGAB///wAH8AYAH///AAPwBAAf//8AA/AEAD///wAD8AQAP///AAPwBAB///+A
+        A/AEAP///8AD4AAA////4AcAAAH////wDgAAAf/////8AAAH//////gAAAf/////4AAAAf/////gAAAA
+        ////+AAAAAAAD//AAAAAAAAH/4AAAAAAAAf/gAAAAAAAB/+AAAAAAAAH/4AAAAAAAAf/gAAAAAAAB/+A
+        AAAAAAAP/4AAAAAAAB//wAAAAABAf/4HwAAAAYAf8APAAAADgA/gA+AAAAMAA8AD8AAABwADgAP8AAAf
+        AAOAA/4AAB8AA4ADAAAAAQADgAIAcA4AgAOABgBwDgBAA4AMAGAMADADwDwAYAwAOAfg+ABgBAAeH//4
+        AEAEAB////gAwAYAH///+ADABgAf///4AcAGAB////gBwAcAH///+APAB4A////8B+AHwH//////4A//
+        ///////gD/////////Af//////////////8=
+</value>
+  </data>
+</root>

CodeWalker/Project/Panels/EditYmapOccludeModelPanel.Designer.cs

@@ -0,0 +1,287 @@
+
+namespace CodeWalker.Project.Panels
+{
+    partial class EditYmapOccludeModelPanel
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(EditYmapOccludeModelPanel));
+            this.OccludeModelTabControl = new System.Windows.Forms.TabControl();
+            this.ModelTabPage = new System.Windows.Forms.TabPage();
+            this.ModelDeleteButton = new System.Windows.Forms.Button();
+            this.ModelAddToProjectButton = new System.Windows.Forms.Button();
+            this.TriangleTabPage = new System.Windows.Forms.TabPage();
+            this.TriangleDeleteButton = new System.Windows.Forms.Button();
+            this.TriangleAddToProjectButton = new System.Windows.Forms.Button();
+            this.TriangleGoToButton = new System.Windows.Forms.Button();
+            this.TriangleCenterTextBox = new System.Windows.Forms.TextBox();
+            this.label31 = new System.Windows.Forms.Label();
+            this.TriangleCorner1TextBox = new System.Windows.Forms.TextBox();
+            this.label1 = new System.Windows.Forms.Label();
+            this.TriangleCorner2TextBox = new System.Windows.Forms.TextBox();
+            this.label2 = new System.Windows.Forms.Label();
+            this.TriangleCorner3TextBox = new System.Windows.Forms.TextBox();
+            this.label3 = new System.Windows.Forms.Label();
+            this.ModelFlagsTextBox = new System.Windows.Forms.TextBox();
+            this.label4 = new System.Windows.Forms.Label();
+            this.OccludeModelTabControl.SuspendLayout();
+            this.ModelTabPage.SuspendLayout();
+            this.TriangleTabPage.SuspendLayout();
+            this.SuspendLayout();
+            // 
+            // OccludeModelTabControl
+            // 
+            this.OccludeModelTabControl.Controls.Add(this.ModelTabPage);
+            this.OccludeModelTabControl.Controls.Add(this.TriangleTabPage);
+            this.OccludeModelTabControl.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.OccludeModelTabControl.Location = new System.Drawing.Point(0, 0);
+            this.OccludeModelTabControl.Name = "OccludeModelTabControl";
+            this.OccludeModelTabControl.SelectedIndex = 0;
+            this.OccludeModelTabControl.Size = new System.Drawing.Size(553, 407);
+            this.OccludeModelTabControl.TabIndex = 0;
+            // 
+            // ModelTabPage
+            // 
+            this.ModelTabPage.Controls.Add(this.ModelFlagsTextBox);
+            this.ModelTabPage.Controls.Add(this.label4);
+            this.ModelTabPage.Controls.Add(this.ModelDeleteButton);
+            this.ModelTabPage.Controls.Add(this.ModelAddToProjectButton);
+            this.ModelTabPage.Location = new System.Drawing.Point(4, 22);
+            this.ModelTabPage.Name = "ModelTabPage";
+            this.ModelTabPage.Padding = new System.Windows.Forms.Padding(3);
+            this.ModelTabPage.Size = new System.Drawing.Size(545, 381);
+            this.ModelTabPage.TabIndex = 0;
+            this.ModelTabPage.Text = "Model";
+            this.ModelTabPage.UseVisualStyleBackColor = true;
+            // 
+            // ModelDeleteButton
+            // 
+            this.ModelDeleteButton.Location = new System.Drawing.Point(176, 89);
+            this.ModelDeleteButton.Name = "ModelDeleteButton";
+            this.ModelDeleteButton.Size = new System.Drawing.Size(95, 23);
+            this.ModelDeleteButton.TabIndex = 111;
+            this.ModelDeleteButton.Text = "Delete Model";
+            this.ModelDeleteButton.UseVisualStyleBackColor = true;
+            this.ModelDeleteButton.Click += new System.EventHandler(this.ModelDeleteButton_Click);
+            // 
+            // ModelAddToProjectButton
+            // 
+            this.ModelAddToProjectButton.Location = new System.Drawing.Point(75, 89);
+            this.ModelAddToProjectButton.Name = "ModelAddToProjectButton";
+            this.ModelAddToProjectButton.Size = new System.Drawing.Size(95, 23);
+            this.ModelAddToProjectButton.TabIndex = 110;
+            this.ModelAddToProjectButton.Text = "Add to Project";
+            this.ModelAddToProjectButton.UseVisualStyleBackColor = true;
+            this.ModelAddToProjectButton.Click += new System.EventHandler(this.ModelAddToProjectButton_Click);
+            // 
+            // TriangleTabPage
+            // 
+            this.TriangleTabPage.Controls.Add(this.TriangleCorner3TextBox);
+            this.TriangleTabPage.Controls.Add(this.label3);
+            this.TriangleTabPage.Controls.Add(this.TriangleCorner2TextBox);
+            this.TriangleTabPage.Controls.Add(this.label2);
+            this.TriangleTabPage.Controls.Add(this.TriangleCorner1TextBox);
+            this.TriangleTabPage.Controls.Add(this.label1);
+            this.TriangleTabPage.Controls.Add(this.TriangleDeleteButton);
+            this.TriangleTabPage.Controls.Add(this.TriangleAddToProjectButton);
+            this.TriangleTabPage.Controls.Add(this.TriangleGoToButton);
+            this.TriangleTabPage.Controls.Add(this.TriangleCenterTextBox);
+            this.TriangleTabPage.Controls.Add(this.label31);
+            this.TriangleTabPage.Location = new System.Drawing.Point(4, 22);
+            this.TriangleTabPage.Name = "TriangleTabPage";
+            this.TriangleTabPage.Padding = new System.Windows.Forms.Padding(3);
+            this.TriangleTabPage.Size = new System.Drawing.Size(545, 381);
+            this.TriangleTabPage.TabIndex = 1;
+            this.TriangleTabPage.Text = "Triangle";
+            this.TriangleTabPage.UseVisualStyleBackColor = true;
+            // 
+            // TriangleDeleteButton
+            // 
+            this.TriangleDeleteButton.Location = new System.Drawing.Point(176, 121);
+            this.TriangleDeleteButton.Name = "TriangleDeleteButton";
+            this.TriangleDeleteButton.Size = new System.Drawing.Size(95, 23);
+            this.TriangleDeleteButton.TabIndex = 109;
+            this.TriangleDeleteButton.Text = "Delete Triangle";
+            this.TriangleDeleteButton.UseVisualStyleBackColor = true;
+            this.TriangleDeleteButton.Click += new System.EventHandler(this.TriangleDeleteButton_Click);
+            // 
+            // TriangleAddToProjectButton
+            // 
+            this.TriangleAddToProjectButton.Location = new System.Drawing.Point(75, 121);
+            this.TriangleAddToProjectButton.Name = "TriangleAddToProjectButton";
+            this.TriangleAddToProjectButton.Size = new System.Drawing.Size(95, 23);
+            this.TriangleAddToProjectButton.TabIndex = 108;
+            this.TriangleAddToProjectButton.Text = "Add to Project";
+            this.TriangleAddToProjectButton.UseVisualStyleBackColor = true;
+            this.TriangleAddToProjectButton.Click += new System.EventHandler(this.TriangleAddToProjectButton_Click);
+            // 
+            // TriangleGoToButton
+            // 
+            this.TriangleGoToButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
+            this.TriangleGoToButton.Location = new System.Drawing.Point(471, 4);
+            this.TriangleGoToButton.Name = "TriangleGoToButton";
+            this.TriangleGoToButton.Size = new System.Drawing.Size(68, 23);
+            this.TriangleGoToButton.TabIndex = 87;
+            this.TriangleGoToButton.Text = "Go to";
+            this.TriangleGoToButton.UseVisualStyleBackColor = true;
+            this.TriangleGoToButton.Click += new System.EventHandler(this.TriangleGoToButton_Click);
+            // 
+            // TriangleCenterTextBox
+            // 
+            this.TriangleCenterTextBox.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
+            | System.Windows.Forms.AnchorStyles.Right)));
+            this.TriangleCenterTextBox.Location = new System.Drawing.Point(75, 6);
+            this.TriangleCenterTextBox.Name = "TriangleCenterTextBox";
+            this.TriangleCenterTextBox.Size = new System.Drawing.Size(390, 20);
+            this.TriangleCenterTextBox.TabIndex = 86;
+            this.TriangleCenterTextBox.TextChanged += new System.EventHandler(this.TriangleCenterTextBox_TextChanged);
+            // 
+            // label31
+            // 
+            this.label31.AutoSize = true;
+            this.label31.Location = new System.Drawing.Point(8, 9);
+            this.label31.Name = "label31";
+            this.label31.Size = new System.Drawing.Size(41, 13);
+            this.label31.TabIndex = 85;
+            this.label31.Text = "Center:";
+            // 
+            // TriangleCorner1TextBox
+            // 
+            this.TriangleCorner1TextBox.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
+            | System.Windows.Forms.AnchorStyles.Right)));
+            this.TriangleCorner1TextBox.Location = new System.Drawing.Point(75, 32);
+            this.TriangleCorner1TextBox.Name = "TriangleCorner1TextBox";
+            this.TriangleCorner1TextBox.Size = new System.Drawing.Size(390, 20);
+            this.TriangleCorner1TextBox.TabIndex = 111;
+            this.TriangleCorner1TextBox.TextChanged += new System.EventHandler(this.TriangleCorner1TextBox_TextChanged);
+            // 
+            // label1
+            // 
+            this.label1.AutoSize = true;
+            this.label1.Location = new System.Drawing.Point(8, 35);
+            this.label1.Name = "label1";
+            this.label1.Size = new System.Drawing.Size(50, 13);
+            this.label1.TabIndex = 110;
+            this.label1.Text = "Corner 1:";
+            // 
+            // TriangleCorner2TextBox
+            // 
+            this.TriangleCorner2TextBox.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
+            | System.Windows.Forms.AnchorStyles.Right)));
+            this.TriangleCorner2TextBox.Location = new System.Drawing.Point(75, 58);
+            this.TriangleCorner2TextBox.Name = "TriangleCorner2TextBox";
+            this.TriangleCorner2TextBox.Size = new System.Drawing.Size(390, 20);
+            this.TriangleCorner2TextBox.TabIndex = 113;
+            this.TriangleCorner2TextBox.TextChanged += new System.EventHandler(this.TriangleCorner2TextBox_TextChanged);
+            // 
+            // label2
+            // 
+            this.label2.AutoSize = true;
+            this.label2.Location = new System.Drawing.Point(8, 61);
+            this.label2.Name = "label2";
+            this.label2.Size = new System.Drawing.Size(50, 13);
+            this.label2.TabIndex = 112;
+            this.label2.Text = "Corner 2:";
+            // 
+            // TriangleCorner3TextBox
+            // 
+            this.TriangleCorner3TextBox.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
+            | System.Windows.Forms.AnchorStyles.Right)));
+            this.TriangleCorner3TextBox.Location = new System.Drawing.Point(75, 84);
+            this.TriangleCorner3TextBox.Name = "TriangleCorner3TextBox";
+            this.TriangleCorner3TextBox.Size = new System.Drawing.Size(390, 20);
+            this.TriangleCorner3TextBox.TabIndex = 115;
+            this.TriangleCorner3TextBox.TextChanged += new System.EventHandler(this.TriangleCorner3TextBox_TextChanged);
+            // 
+            // label3
+            // 
+            this.label3.AutoSize = true;
+            this.label3.Location = new System.Drawing.Point(8, 87);
+            this.label3.Name = "label3";
+            this.label3.Size = new System.Drawing.Size(50, 13);
+            this.label3.TabIndex = 114;
+            this.label3.Text = "Corner 3:";
+            // 
+            // ModelFlagsTextBox
+            // 
+            this.ModelFlagsTextBox.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
+            | System.Windows.Forms.AnchorStyles.Right)));
+            this.ModelFlagsTextBox.Location = new System.Drawing.Point(75, 6);
+            this.ModelFlagsTextBox.Name = "ModelFlagsTextBox";
+            this.ModelFlagsTextBox.Size = new System.Drawing.Size(390, 20);
+            this.ModelFlagsTextBox.TabIndex = 119;
+            this.ModelFlagsTextBox.TextChanged += new System.EventHandler(this.ModelFlagsTextBox_TextChanged);
+            // 
+            // label4
+            // 
+            this.label4.AutoSize = true;
+            this.label4.Location = new System.Drawing.Point(8, 9);
+            this.label4.Name = "label4";
+            this.label4.Size = new System.Drawing.Size(35, 13);
+            this.label4.TabIndex = 118;
+            this.label4.Text = "Flags:";
+            // 
+            // EditYmapOccludeModelPanel
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(553, 407);
+            this.Controls.Add(this.OccludeModelTabControl);
+            this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
+            this.Name = "EditYmapOccludeModelPanel";
+            this.Text = "Occlude Model";
+            this.OccludeModelTabControl.ResumeLayout(false);
+            this.ModelTabPage.ResumeLayout(false);
+            this.ModelTabPage.PerformLayout();
+            this.TriangleTabPage.ResumeLayout(false);
+            this.TriangleTabPage.PerformLayout();
+            this.ResumeLayout(false);
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.TabControl OccludeModelTabControl;
+        private System.Windows.Forms.TabPage ModelTabPage;
+        private System.Windows.Forms.TabPage TriangleTabPage;
+        private System.Windows.Forms.Button TriangleGoToButton;
+        private System.Windows.Forms.TextBox TriangleCenterTextBox;
+        private System.Windows.Forms.Label label31;
+        private System.Windows.Forms.Button TriangleDeleteButton;
+        private System.Windows.Forms.Button TriangleAddToProjectButton;
+        private System.Windows.Forms.Button ModelDeleteButton;
+        private System.Windows.Forms.Button ModelAddToProjectButton;
+        private System.Windows.Forms.TextBox TriangleCorner3TextBox;
+        private System.Windows.Forms.Label label3;
+        private System.Windows.Forms.TextBox TriangleCorner2TextBox;
+        private System.Windows.Forms.Label label2;
+        private System.Windows.Forms.TextBox TriangleCorner1TextBox;
+        private System.Windows.Forms.Label label1;
+        private System.Windows.Forms.TextBox ModelFlagsTextBox;
+        private System.Windows.Forms.Label label4;
+    }
+}

CodeWalker/Project/Panels/EditYmapOccludeModelPanel.cs

@@ -0,0 +1,245 @@
+using CodeWalker.GameFiles;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace CodeWalker.Project.Panels
+{
+    public partial class EditYmapOccludeModelPanel : ProjectPanel
+    {
+        public ProjectForm ProjectForm;
+        public YmapOccludeModel CurrentOccludeModel { get; set; }
+        public YmapOccludeModelTriangle CurrentTriangle { get; set; }
+
+        private bool populatingui = false;
+
+
+        public EditYmapOccludeModelPanel(ProjectForm owner)
+        {
+            ProjectForm = owner;
+            InitializeComponent();
+        }
+
+
+        public void SetOccludeModel(YmapOccludeModel model)
+        {
+            CurrentOccludeModel = model;
+            CurrentTriangle = null;
+            Tag = model;
+            LoadOccludeModel();
+            LoadTriangle();
+            UpdateFormTitle();
+            OccludeModelTabControl.SelectedTab = ModelTabPage;
+        }
+        public void SetOccludeModelTriangle(YmapOccludeModelTriangle tri)
+        {
+            CurrentTriangle = tri;
+            CurrentOccludeModel = tri?.Model;
+            Tag = tri?.Model;
+            LoadOccludeModel();
+            LoadTriangle();
+            UpdateFormTitle();
+            OccludeModelTabControl.SelectedTab = TriangleTabPage;
+        }
+
+        private void UpdateGraphics()
+        {
+            var m = CurrentOccludeModel ?? CurrentTriangle?.Model;
+            if (m == null) return;
+            if (ProjectForm?.WorldForm == null) return;
+
+            ProjectForm.WorldForm.UpdateOccludeModelGraphics(m);
+        }
+
+        private void UpdateFormTitle()
+        {
+            Text = "OccludeModel: " + (CurrentOccludeModel?.Index.ToString() ?? "(none)");
+        }
+
+
+        private void LoadOccludeModel()
+        {
+
+            if (CurrentOccludeModel == null)
+            {
+                ////Panel.Enabled = false;
+                ModelAddToProjectButton.Enabled = false;
+                ModelDeleteButton.Enabled = false;
+                ModelFlagsTextBox.Text = string.Empty;
+            }
+            else
+            {
+                populatingui = true;
+                var m = CurrentOccludeModel;
+                ////Panel.Enabled = true;
+                ModelAddToProjectButton.Enabled = !ProjectForm.YmapExistsInProject(CurrentOccludeModel.Ymap);
+                ModelDeleteButton.Enabled = !ModelAddToProjectButton.Enabled;
+                ModelFlagsTextBox.Text = m.Flags.Value.ToString();
+                populatingui = false;
+
+                //if (ProjectForm.WorldForm != null)
+                //{
+                //    ProjectForm.WorldForm.SelectObject(CurrentOccludeModel);
+                //}
+
+            }
+        }
+        private void LoadTriangle()
+        {
+
+            if (CurrentTriangle == null)
+            {
+                ////Panel.Enabled = false;
+                TriangleAddToProjectButton.Enabled = false;
+                TriangleDeleteButton.Enabled = false;
+                TriangleCenterTextBox.Text = string.Empty;
+                TriangleCorner1TextBox.Text = string.Empty;
+                TriangleCorner2TextBox.Text = string.Empty;
+                TriangleCorner3TextBox.Text = string.Empty;
+            }
+            else
+            {
+                populatingui = true;
+                var t = CurrentTriangle;
+                ////Panel.Enabled = true;
+                TriangleAddToProjectButton.Enabled = !ProjectForm.YmapExistsInProject(CurrentTriangle.Ymap);
+                TriangleDeleteButton.Enabled = !TriangleAddToProjectButton.Enabled;
+                TriangleCenterTextBox.Text = FloatUtil.GetVector3String(t.Center);
+                TriangleCorner1TextBox.Text = FloatUtil.GetVector3String(t.Corner1);
+                TriangleCorner2TextBox.Text = FloatUtil.GetVector3String(t.Corner2);
+                TriangleCorner3TextBox.Text = FloatUtil.GetVector3String(t.Corner3);
+                populatingui = false;
+
+                //if (ProjectForm.WorldForm != null)
+                //{
+                //    ProjectForm.WorldForm.SelectObject(CurrentTriangle);
+                //}
+
+            }
+        }
+
+        private void TriangleGoToButton_Click(object sender, EventArgs e)
+        {
+            if (CurrentTriangle == null) return;
+            if (ProjectForm?.WorldForm == null) return;
+            ProjectForm.WorldForm.GoToPosition(CurrentTriangle.Center, CurrentTriangle.Box.Size * 2.0f);
+        }
+
+        private void TriangleAddToProjectButton_Click(object sender, EventArgs e)
+        {
+            if (CurrentTriangle == null) return;
+            if (ProjectForm == null) return;
+            ProjectForm.SetProjectItem(CurrentTriangle);
+            ProjectForm.AddOccludeModelTriangleToProject();
+        }
+
+        private void TriangleDeleteButton_Click(object sender, EventArgs e)
+        {
+            ProjectForm.SetProjectItem(CurrentTriangle);
+            ProjectForm.DeleteOccludeModelTriangle();
+        }
+
+        private void ModelAddToProjectButton_Click(object sender, EventArgs e)
+        {
+            if (CurrentOccludeModel == null) return;
+            if (ProjectForm == null) return;
+            ProjectForm.SetProjectItem(CurrentOccludeModel);
+            ProjectForm.AddOccludeModelToProject();
+        }
+
+        private void ModelDeleteButton_Click(object sender, EventArgs e)
+        {
+            ProjectForm.SetProjectItem(CurrentOccludeModel);
+            ProjectForm.DeleteOccludeModel();
+        }
+
+        private void ModelFlagsTextBox_TextChanged(object sender, EventArgs e)
+        {
+            if (populatingui) return;
+            if (CurrentOccludeModel == null) return;
+            uint.TryParse(ModelFlagsTextBox.Text, out uint f);
+            lock (ProjectForm.ProjectSyncRoot)
+            {
+                if (CurrentOccludeModel.Flags != f)
+                {
+                    CurrentOccludeModel.Flags = f;
+                    ProjectForm.SetYmapHasChanged(true);
+                }
+            }
+        }
+
+        private void TriangleCenterTextBox_TextChanged(object sender, EventArgs e)
+        {
+            if (populatingui) return;
+            if (CurrentTriangle == null) return;
+            var v = FloatUtil.ParseVector3String(TriangleCenterTextBox.Text);
+            lock (ProjectForm.ProjectSyncRoot)
+            {
+                if (CurrentTriangle.Center != v)
+                {
+                    CurrentTriangle.Center = v;
+                    UpdateGraphics();
+                    ProjectForm.SetYmapHasChanged(true);
+                    ProjectForm.WorldForm?.SetWidgetPosition(v);
+                }
+            }
+        }
+
+        private void TriangleCorner1TextBox_TextChanged(object sender, EventArgs e)
+        {
+            if (populatingui) return;
+            if (CurrentTriangle == null) return;
+            var v = FloatUtil.ParseVector3String(TriangleCorner1TextBox.Text);
+            lock (ProjectForm.ProjectSyncRoot)
+            {
+                if (CurrentTriangle.Corner1 != v)
+                {
+                    CurrentTriangle.Corner1 = v;
+                    UpdateGraphics();
+                    ProjectForm.SetYmapHasChanged(true);
+                    ProjectForm.WorldForm?.SetWidgetPosition(CurrentTriangle.Center);
+                }
+            }
+        }
+
+        private void TriangleCorner2TextBox_TextChanged(object sender, EventArgs e)
+        {
+            if (populatingui) return;
+            if (CurrentTriangle == null) return;
+            var v = FloatUtil.ParseVector3String(TriangleCorner2TextBox.Text);
+            lock (ProjectForm.ProjectSyncRoot)
+            {
+                if (CurrentTriangle.Corner2 != v)
+                {
+                    CurrentTriangle.Corner2 = v;
+                    UpdateGraphics();
+                    ProjectForm.SetYmapHasChanged(true);
+                    ProjectForm.WorldForm?.SetWidgetPosition(CurrentTriangle.Center);
+                }
+            }
+        }
+
+        private void TriangleCorner3TextBox_TextChanged(object sender, EventArgs e)
+        {
+            if (populatingui) return;
+            if (CurrentTriangle == null) return;
+            var v = FloatUtil.ParseVector3String(TriangleCorner3TextBox.Text);
+            lock (ProjectForm.ProjectSyncRoot)
+            {
+                if (CurrentTriangle.Corner3 != v)
+                {
+                    CurrentTriangle.Corner3 = v;
+                    UpdateGraphics();
+                    ProjectForm.SetYmapHasChanged(true);
+                    ProjectForm.WorldForm?.SetWidgetPosition(CurrentTriangle.Center);
+                }
+            }
+        }
+    }
+}

CodeWalker/Project/Panels/EditYmapOccludeModelPanel.resx

@@ -0,0 +1,409 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <assembly alias="System.Drawing" name="System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
+  <data name="$this.Icon" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+    <value>
+        AAABAAMAICAAAAAAGACoDAAANgAAABAQAAAAABgAaAMAAN4MAABAQAAAAAAYACgyAABGEAAAKAAAACAA
+        AABAAAAAAQAYAAAAAAAADAAAAAAAAAAAAAAAAAAAAAAAAP//////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        //////////////////////////////////////v8/u3v+Pn6//7+////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        //7+/vX3/rzA3OHl9fz9////////////////////////////////////////////////////////////
+        //////////////////////////////////////////////////7//+zv+3Z6qcLI5Pr7////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        //////////////////7+/+br+15in6+33vf5//////////////////7+//7+////////////////////
+        //////////////////////////////3+//v8//v8//3+//////////////////////7+/+Ho+1dana20
+        4/b4//////////z9//P2/+Tp/ezw/vz9//////////////////////////////////////////7///X4
+        /9Pa+tPa+/H1//z9//////////////////7+/93k+SsscaSr3PX3//////7+//L1/7W98AcWgrvC8Pj6
+        //////////////////////////////////////////7+/+bs/xohiAEJdrvF9+7y//z9////////////
+        //7+/9rh+CEkapmh0/T3//////j6/9HZ/AEHcgEEb9LZ+/r7////////////////////////////////
+        //////////7//+/z/3F+zAAAXwQLcZai3fb4//////////////3+/97l/E9Tmaau4fT3/////+/0/1dd
+        sAAAV7a/8/H1//7+//////////////////////////////////////////////r8/+jv/46Y3QUUf6Ot
+        5PX4//////////////3+/9zj+3Z6wLe/7fX4//////D0/212xnaAzerw//z9////////////////////
+        //////////////////////////////////v8/+/z/+Dm+/D0//z9//////////7+//j6/9Pd+UhLjb/H
+        9/D0//3+//n7/+nt/+jt//n7////////////////////////////////////////////////////////
+        //7///7+//7+//7+//////////r8/+7z/83W+ImU2A0UdFNarr/K9env//X4//z9//3+//7/////////
+        //////////////////////////////////////////////////////////////////7///j6/+Pq/255
+        xhckjE5XsVVftUlTqwAKeTA9nr3H8+7z//v8////////////////////////////////////////////
+        //////////////////////////////7+//b4/9Tc+Sc0mRonj8rV/crX/ZSb48rX/brG8wwWgQAEdJei
+        4efu//n7//7+//z9//z9//z9//z9//3+//////////////////////////////3+//f5/+3y/+nv/+ft
+        /8vV+io2mImU2M7c/7vG9yIvlQAOfCg4mM3Y/s/c/4aR1AQRfGtzwtni/ebt/9vi/tri/tXd+9Tc+O3x
+        /vz9//////////////////////////n6/87V+FVftkRPrFlnvSEqjQoUfmJvwWFvvg0TfQQIcxEchwAD
+        cy89n19rvVVitQwZgwAAaiMrkT9NqTVBoiw3mhQihig1mNLX+fv8//////////////////////////b5
+        /52l4EFLqoCK03yF0VBctGhyw52o5GVrvQAAaneBzsHM+jA3mhYgiTtIpJOf3ouW2AAAbmh0wbbA8bS+
+        7qiz5pCb16+56e/z//3+//////////////////////////v8//H1/+vw/+zx/+nv/7/J9YqP3MbP/8LM
+        +hwqkFZftaCp5EhRrcTQ+9jj/8rW/UJMqn6J0ebt//X3//f5//b4//X3//f5//z9////////////////
+        //////////7+//z9//3+//////////3+/+7z/6at64iP3aWs7XN8zRIfhyUykp2o5MHM+oKM0xonjY6X
+        2+jv//v8//////7+//n7//b5//r7//7///////////////////7+//f5/+rw/9Pa9fL0/v7/////////
+        //v8//H1/+Tr/7i/91liu0NPq0VQrS06m0NNqDdCoYqU1+nv//v8//////////n7/9zi/qSt59ri/fL1
+        //v8//7///////z9//D0/8rT+h0sjkVQrPD0//////////////////////z9/+7z/8LL9Jqk4aGq6LW/
+        8c3W9+Xs/vH1//v8//////////////f5/6at5gAAbxIfh6u16+Po/fr7//////b5/6ev5gAIeAAPernC
+        8fX4//////////3+//v8//z9//////3+//j6//P3//P2//b4//r8//7+//7+//v8//r8//3+//////v8
+        /+Xr/nuIzwAAbBseg5Sb2fb5//////f5/8DF8pWe3d/n/vT3//39//////v8/+zx/87V9+3x/v3+////
+        //3+//j6//X4//v8//////////n7/+Dm/snR9fD0//39//z8/fv8/+3y/8LK9aGq4dfd9/n7//////z9
+        //b5//X4//v8//////////7+/+7z/4aP1gEPet7k/f39//////f5/83U+ZCZ2u3x/v7+//////P3/215
+        wgAJd7fB8/L1//7+//////3+//j6//f5//r8//7+//////////////////////////////j6/87W/AAA
+        X2duue3y//7+//////D0/05asBQfidzj/P39//////X4/6Su6AAAXBccgtff/vv8////////////////
+        //////////////////////////////////////P3/3F8xhYli9Xe/fn6/////////+3y/1pltQAJd9be
+        /fv8//////z9/+rw/36I0Bknjs/W+vv8////////////////////////////////////////////////
+        //////f5/8HI7tnf+/X4//7+/////////+/0/3R7xgAAb9ng/Pz9//////////n7/+Ln/dLY+fP2//3+
+        //////////////////////////////////////////////////////3+//r7//v8//7+////////////
+        //b4/7/F84eP0e/0//7+//////////7+//z9//v8//3+////////////////////////////////////
+        //////////////////////////////////////////////////z9//b5//X4//v8////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        //////////////////////////////////////////////////////////////////////////w////4
+        P///+D////g8//D4MH/geCB/4Dggf+A4IH/wOCD/+DAB//hgAf//gAP//wAAB/AAAAPwAAAD8AAAA/AA
+        AAfjAAEHgYADAQPgBwEDEAEBAghgAQwIIEH8CCB//Bggf/wYMH/8ODD///h/////////////KAAAABAA
+        AAAgAAAAAQAYAAAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
+        AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP///+vv/fL1/v///wAAAAAAAAAA
+        AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP///4+Vx7/F5v///wAAAAAAAAAAAAAAAAAAAAAAAAAA
+        AAAAAAAAAAAAAAAAAAAAAP///4CHtrS62////////////////////wAAAAAAAAAAAP////H0/vf6/v//
+        /////////4yTwrrB4f///+zw+7rA6P39/////wAAAAAAAAAAAP///56l2BkcguXr/P///////42Uw8jO
+        6P///ysvjWVqtP///////wAAAAAAAAAAAP////D0/0hPpsDG6////////6y02d7k8////3qAx+/z/f//
+        /wAAAAAAAAAAAAAAAAAAAP///////////////8zT8V5ns1Rcrdzh9f///////////wAAAAAAAAAAAAAA
+        AAAAAP////////7+/6ix3nmBxFthtmdwu09WqbC54/v9//r8//j6//39/wAAAAAAAAAAAOjt/H6I0FJc
+        skpSqHF+wRMahFZhs4iT1AsNc1pgrm52v2RsuO/z/gAAAP////////L2/cLJ7rrD64+V4DY+ozU+mYmU
+        0X2Hy1hfss7V8urv/PP2/v///wAAAP///+Pp+d/k9////////+Pp/4uR3ysymW14xYOM0fD0/P///+Xq
+        +ri/6Pj6/wAAAOrv/j5DnbS75P////////////X4/+/0/ubr+/r7/////////9rh+hgZhKGo2QAAAPDz
+        /eLn+f////j6/2Nqttrg9////+Hn+P3+//3+/1hescLJ6/////L2/eru/AAAAAAAAAAAAP///8rR70tR
+        p/3+//v8/zY6jNPY7////09WqWpwu////wAAAAAAAAAAAAAAAAAAAAAAAPb4/vr7//////v8/5Wd1eHm
+        +P////v8//T3/wAAAAAAAAAAAAAAAP//AAD8PwAA/D8AAPwDAACAAwAAgAMAAIAHAADABwAAwAEAAMAB
+        AAAAAQAAAAEAAAABAAAAAQAAwAcAAOAPAAAoAAAAQAAAAIAAAAABABgAAAAAAAAwAAAAAAAAAAAAAAAA
+        AAAAAAAA////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////////////////////////////////////////////////////////////v7//f7//P3//P3//P3/
+        /f7//v7/////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////////////////////////////////////////////////////////////////////////v7//P3/
+        +fv/+fv/+Pr/+fv/+vv//P3//v//////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////////f7/+fr/8/b/7PL/5+3/6e/+9Pf/+vv//v7/////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////////////////////////P3/9/r/6O7/cXe1UVaet7z17fL/+Pr//f3/////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////+/z/9Pj/4Oj/NzyCUlOd2dz/6O//9Pf//P3/////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////+vv/8vb/2+P9X2OmREGLnqPd
+        4+v/8vb/+/z/////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////+vv/8fb/
+        1N35bXK1JSRtbHGz5O7/8fX/+/z/////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////+vv/8PX/3Ob/U1eaDwtXjZLT4+z/8fX/+/z/////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////+vv/8fb/2eP+MjR6AAA+c3i34Or/8fX/+/z/////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////+vv/8vb/1d/7MS91AAA1UFSS4On/8vb/+/z/////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////+vv/8fb/2OL+NjZ7AAArX2Ok
+        4uz/8fX/+/z/////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////+vv/8fb/
+        2eP/LjJ1DAxKfYTE4Or/8fX/+/z//////////////////////////////v7//v7//f7//f7//v7//v//
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////+vv/8PX/3OX/gILIR0eVeoHC3eb/8fX/+/z//////////////////////v7//P3/+fv/+Pr/
+        +Pr/+Pr/+vv//P3//v7/////////////////////////////////////////////////////////////
+        /////////////////////////////v7//f7//P3/+vv/+vv/+/z//f3//v7/////////////////////
+        ////////////////////////+vv/8PX/2eP9ZWeqHx1obnOz4Or/8fX/+/z//////////////////v7/
+        +/z/9fj/8vb/8PX/7vT/8fb/9fj/+fr//f7/////////////////////////////////////////////
+        /////////////////////////////////////////v///P3/+Pr/9fj/9fj/9Pj/9Pf/9vn/+/z//v7/
+        ////////////////////////////////////////+vv/8fb/2eP9ODp9AAA5jZDQ5O7/8PX/+/z/////
+        /////////v7/+/z/9Pf/7fP/5u//wsz6j5XfuMDx7fL/9vn//P3/////////////////////////////
+        /////////////////////////////////////////////////////////f7/+Pr/8/b/5+3/2eH/2uP/
+        5u3/7fP/8/b/+vv//f7/////////////////////////////////////+vv/8PX/3ef/U1ebBgVKio/O
+        4uz/8fX/+/z//////////v///P3/9fj/7fP/4uv/hIzZHSWPAABmU1i14ub/9/r/+/z/////////////
+        /////////////////////////////////////////////////////////////////////////P3/9Pf/
+        7/X/09z/TlSzNzWYj5bh5O7/6/L/8vb/+fv//f7/////////////////////////////////+vv/8fX/
+        2eP/QUWIEhBZbnSz3uj/8fb/+/z//////////f7/+Pr/7/T/6PH/iI7cAABvAABqAABncXjK6O//9fj/
+        +/z/////////////////////////////////////////////////////////////////////////////
+        ////////+/z/8/f/2uD/Z27EAABnAABiBgl4jJTd5vD/6O//8vX/+fv//f7/////////////////////
+        ////////+vv/8fb/2OP/Mjd6AQE6ZGup4er/8fX/+/z/////////+vz/8fX/6/T/xM/8ExyJAABwAABu
+        GySRxc387fT/9ff//P3/////////////////////////////////////////////////////////////
+        ////////////////////////+vz/8/f/1Nr/MzqhAABhAxOBAARyBgp5jpLg5Oz/7PP/9Pf/+vz//v7/
+        ////////////////////////+vv/8fb/2eP/KCtvBwZOjJHS4Or/8fX/+/z//////f7/9/n/7fP/3+j/
+        UFq3AABtAAZ3BAh6mZ/n5vD/7vP/+Pr//v7/////////////////////////////////////////////
+        ////////////////////////////////////////+/z/9Pj/6e//sbb1KzWcAABwBhaBAAFyAgp6fITR
+        1d777/T/+Pr//f7/////////////////////////+vv/8PX/3+j/WF2hBglTnaTj5O3/8PX/+/z/////
+        /P3/9Pf/6vL/k5riAAByAAR0AABrY2vE4ur/6vH/9ff//P3/////////////////////////////////
+        /////////////////////////////////////////////////////////f3/9/n/7fL/5O3/ytX/RU6w
+        AABpAA5+AABuAABnhord6e7/+fv//f7/////////////////////////+vv/7/T/3+j/k5jbT1KdgYjJ
+        3uf+8fX/+/z/////+/z/9fn/4ef/NDqhAABnAABrJjCU0Nn/5/D/8fX/+vv//v7/////////////////
+        /////////////////////////////////////////////////////////////////////////v7/+/z/
+        9vn/7vP/6vP/ztb/O0CmAABpAABrQkuoxMn57PH/+Pr//f7/////////////////////////+vv/8PX/
+        2+X/en/CUFGak5nY3+j/8fX//P3//////P3/9fj/4en/i5DbNT2hIyuTpqzv4uz/7vP/9/n//f7/////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////////////v7//P3/9vn/7/P/6vL/ytH/X2i9XWi7wsf/6e//8/f/+Pr//v7/////////////////
+        ////////+vv/8PX/3OX/WF2hW1ylvMD+3uf/8PX/+/z//////f7/9vn/7fP/4uj/j5Pgf4LV3+X/6fD/
+        9Pf//P3/////////////////////////////////////////////////////////////////////////
+        /////////////////////////////////v///P3/+Pr/8vX/7fP/5+//5u7/6vD/8PT/9vn//P3//v7/
+        /////////////////////f7/9/n/7fP/0tz9LDJzNjh/nqTk2uT/7fL/9/n//f7//f7/+fv/8/b/7PL/
+        3eX/zM//5ev/9fj/+fv//v7/////////////////////////////////////////////////////////
+        /////////////////////////////////////////////////////v///f3/+vv/9/n/9vn/9fj/9vn/
+        +fr//P3//v7//////////////v///f7/+vv/9vn/7/T/5vD/2Ob/VFubERNdoajk4u//5O7/7vP/9vj/
+        +fr/+vv/+Pr/9fj/9Pj/9fj/9fj/+Pr//P3/////////////////////////////////////////////
+        /////////////////////////////////////////////////////////////////////////v///v7/
+        /f7//P3//P3//f3//v7//v///////////////f7/+vz/9vn/8fX/7vT/5O3/3eb/z9n/cHjICxN5d37L
+        z9n/2eP/5O3/6/L/8PT/9Pf/9/n/+vv/+vv/+/z//P3//f3//v7/////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////////////////////////////////////////////////P3/+Pr/8/b/7vT/6vL/z9r+jZjeQUeq
+        IiuQCBN3AAFrBRB8Nj2iUViym6XlydH/4+z/6/L/8PT/9/n/+/z//f7//v//////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////////////////////////////////////////////////////////////f3/9/n/8fX/6/L/3uf/
+        mKTkLzibAABoAAB0Fx+HDBh7FSGDAg16AABYAABlCBB/Ji2UhYza1+D/6PL/7fL/9Pf/+vv//f7/////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////////////////////////////////////////////////////////////////////v7//P3/9/n/
+        8PT/7PT/z9j/XmO+AABtAABcMDSXoajsu8X7VV+5hYzblZ/fTVSxFSKMAABkAABnAAN2Qkmpsbrz5e3/
+        6vH/8fX/+Pr//P3//v//////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////P3/9/n/8PX/7PT/vcn3LTOZAABaAgR1ZWzD0Nf/5vL/1OP/l53lzs3/6fP/4+7/sLzwZ23CBxSD
+        AABnAABlHiaSmqHo3+j/5+//7/T/9vn//P3//v7/////////////////////////////////////////
+        /////////////////////////////////////////////////////////////////////////////v7/
+        /v7//v7//v7//f7/+/z/9vj/7vP/7PX/tcLzEBeGAABkPEWlqLPt2eX/4e7/3On/uMX1gofVe3vPhYzY
+        z93+5/X/4e3/lJ3gHiOPAABtAABqChiEbHLIytD/5/D/7PL/8/f/+Pr/+fr/+Pr/+Pr/+Pr/+Pr/+Pr/
+        +Pr/+fv/+vv/+/z//f7//v7/////////////////////////////////////////////////////////
+        /v7//f7/+/z/+fv/9/n/9vj/9fj/9Pf/8fX/7PL/4uv/l6HgDhF7AAN4iZDe0d7/3uz/4vD/w83/VVm3
+        ICiSAAFyAABlAABwaHTD1N//2un/3er/w838ZW3BEyOJJzKVAQ16NDmfwsn75fD/5u7/7PL/7vP/7fP/
+        7fP/7fL/7fP/7vP/7/T/8fb/9Pj/9vn/+fr//f3//v//////////////////////////////////////
+        /////////////v7//P3/+Pr/9Pf/8fX/7vT/7PL/6/L/6fH/5u7/6vX/tsD0CQx4AAFwkZvi7ff/4vD/
+        4fD/z9j/OkGlAABiAABwBxWAAAt7BBN+P0uofYLUztb/4O7/6fb/6fP/qa7xQkyoBg56AABqMjugx8/+
+        5fH/4Ov/4On/3uj/3eb/3+j/3uj/1+L/0d3/1d7/3+f/7fL/9vj/+vz//v7/////////////////////
+        /////////////////////////////f7/+fr/8/f/6/L/2d//v8j6vcf5ucP1wMv8wM3+vMj6PkqoAABo
+        UF25usP7tsPyvsr6sLrwQ0utAABqAAV1OUameIDRKDWZAAd2GyeOLDecmaHntsL0pbLom6riq7LzUlu0
+        AANzBhR/AAZ0NT+ja3bBY2i/XGG6UViyWl65XGG7XGC6TVWvQU6pPkalODygqK7p8vb/+vz//v7/////
+        /////////////////////////////////////////////P3/9/n/7/T/wcj2R0ysExeFERmGDxuIFB6K
+        FBqICxSEAABsAAByDBiDCRSBBRCADhaFCRODAAh4AxF/AAl4CxeDHSaPAAp6AAN0AA19AAd3CBOBEBqH
+        BhGBAAh5AABwAAByAAh5BhSCAxWCAABsAABvAABlAABnAABxAABjAABmAABhAABdAABYAABhCAt/q7Lr
+        8/f/+vv//v7//////////////////////////////////////////////////P3/+fv/3uT/SE2vAABn
+        CBB/GiCMLzmfLTWcGByJFRyKGCOOMj2gHymRDxiGGyOPLDCXBRF/AAh3BhaCEyKMICqTKC2WNDqfIzCV
+        Awx6Eh+JHiaPAAR3AAZ5CxSDICWQX2q7Q1CqAA1+AAFxDxuHiZTbVGC4dHnQnabrTVqzY23EUV62Slau
+        LjaZXWm9sLjz5ez/9vn/+fv//v7//////////////////////////////////////////////////P3/
+        +Pv/4+n+e4LPfoPVpqv2vsf/zNX/zdb/xtH/v8v8pK7spKfysLb3vcr4ws784ej/hI/YAAZ1AAJzVF25
+        yM//3Of/5+//i5LcAABpMzyfp6vxoKznlqHhqbbtx9H/8fz/kpvfAABiAABph4zc5PD/2OP/193/3un/
+        1+D/2OH/1+D/0Nr/zNL/3+j/6/L/7/T/9vn//P3//v//////////////////////////////////////
+        /////////////f7/+Pr/9Pf/6vD/5u3/3+b/4uv/6PD/5+//5O3/5/P/sL3sXmS7mZzoz9f/3+z/4e//
+        mKLiEiKKCBF/KTWZr7T06/f/3ev/VF2zChSBipPcz9v+4u7/3ur/3ev/5/X/qrPrISmSDRJ2Xmq/3ur/
+        4uv/6vH/7fP/7fL/7/T/7vP/7fP/7fP/8PX/8fX/9Pf/+Pr/+/z//v7/////////////////////////
+        /////////////////////////////v7//P3/+Pr/9vn/9Pf/8vb/8vb/8/b/9Pf/7/T/6/L/tL/ubXLH
+        en/Ti43gqavy0t3/nafjMj6fJzaaAAV1GyeOYmW7Nz6fAABgNj6i1N//3uz/2uX/3Oj/5PH/wcj7FR2J
+        AAN0gong0tr/6fH/7/P/9vj/+Pr/+fv/+fv/+Pr/+Pr/+Pr/+fv/+vv//P3//f7//v//////////////
+        /////////////////////////////////////////////////v7//f7//P3/+/z/+/z/+/z//f3//f7/
+        +fv/8fX/5Oz/jpbfc3jObnXLcXfOk5rks7b4iY3dR1KvDhuEAABoAABlEBV9U12ytcD13Or/3en/3ej/
+        1eL/q7fvGR+MKDKZbnnNxc/76PD/8fX/+fr//f7//v///////v7//f7//f3//P3//f3//f7//v//////
+        /////////////////////////////////////////////////////v7//f7//P3//P3//f7//v7/////
+        /////////////////f7/9vn/7/T/yNH5lJrleoDVmZ3pmpzpc3nPfoTWf4bYVFy3HSaLZ3PGsrb8v8r8
+        y9n9q7jre4LRf4fUgIvXAwZ1AABrhYjb0NX/6PH/8PX/+Pr//f7//////////v///f3/+vv/+Pr/9/r/
+        9/n/+Pr/+/z//f7//v7//////////////////////////////////////v///f7/+/z/+fr/9vj/9/n/
+        +vz/+vv/+/z//v7//////////////////v7/+vz/8/f/7PL/2uT/t8H1srP6vcH+nKTnSlOxV2C7TVaz
+        WGS8QUqmSlSuSFOtR1GtbXTKVl23ARB5AAh2AABnd33P3eP/4ur/7/T/9/n//P3//////////////P3/
+        9/n/8vb/7PH/6fD/7PL/7vP/8vb/9vn/+/z//f7//////////////////////////////v7/+/z/+Pr/
+        8/b/7/T/8Pb/6vH/3eP97vL++fr//P3//////////////////////f7/+vv/9fj/7/T/5+//z9f+t7v4
+        uLn9Z2zFLzucFCGIMz6gGCCMAAd4AAl2Dx2EER+GXWK8c3XLKzKXd4LP4er/6/L/8PX/9/n//P3//v//
+        /////////v7/+fv/8/b/7PP/y9H/i4/erLbt4er/5e3/7fP/8/b/+fv//f3//v7/////////////////
+        /v7/+/z/9vj/8PT/6/L/3+n/x9H9aHTAZGvG3+b9+Pr/+/z//////////////////////////v7/+/z/
+        +Pr/8vb/6/H/3OX+wMn4maDmdHrPWGG6T1a1eoHWcHfOTlayUlq1SlKubHjAxMj/0dn/4+v/7PL/8vb/
+        +Pr//P3//v7//////////////f7/+fr/7vP/xsv5YGXAHymRKjKYYWS9rbLz4u3/6/P/8vb/+fr//f7/
+        /////////////v//+/z/9vj/7fL/5e3/xs7/Y23BIiiSAABeLTab3+b/9/r/+/z/////////////////
+        /////////////////f7/+vz/9vj/8PX/6vH/3eb/ydL8xM/6uMPyt733w8j/zNb/1Nz/3OT/4uz/5u7/
+        7fP/8vb/9vj/+vz//f7//////////////////////f7/+fv/7vP/jpHiAAJ1CxaBER6GAABoFRmGbXbH
+        0Nf/7PL/9fj//P3//////////////v7/+fv/8/f/4Of/hYvbKDGZAABuAABdAAZyi5La5+7/9vn/+/z/
+        /////////////////////////////////////v7//P3/+fv/9ff/8vb/7/X/7fP/6/L/5u3/5ez/6fD/
+        7PP/7/T/8fX/9Pf/9/n/+vv//P3//v7//v///////////////////////v7/+fv/8fb/2eH9fIbQExqH
+        AABrAAp6AAFyAABwS0+uztX39vn/+vz//////////////f7/+Pr/8ff/qbLpAABrAABhAABwDBWAfobX
+        5e3/8PX/9vn//f3//////////v///f7/+/z/+vv/+vv/+vz//P3//v7//v///v7//P3/+vz/+Pr/9/n/
+        9vj/9vj/9vj/9vj/9/n/+fr/+/z//P3//f7//v7//f7//P3/+/z/+vz/+/z//P3//v7//////v7/+/z/
+        9fj/7/T/5/H/uML1U1e1AAh5AABuAABvMjmdv8bz9vr/+vv//////////////f7/+fv/7/T/iY7aDxSA
+        GiONa3XHsr7w4Oj/6/H/9Pf/+vz//v7//////v///P3/+Pr/9Pf/8/f/9fj/9fj/9vn/+/z//v7/////
+        /////////v7//f7//P3/+/z/+/z//P3//f7//v///////////////v7/+/z/9/n/9vn/9vn/9Pj/9vn/
+        +/z//v7//////f7/+vz/9fj/7/T/6vL/3ef/i5PbGRqJBQl5jJbZ6vH/9Pj/+/z//////////////f7/
+        +fv/8fT/1Nn9t7/0wcr54er/7fT/8fX/9fj/+vv//f7//////////f3/+Pr/8PT/6/L/3uX/ztb/5Or/
+        8/f/+Pr//f7//////////////f7/+vz/+Pr/+fv/+fv/+vv//f3//v///////////////P3/9/n/7vL/
+        193/ztf/5u3/7vP/9Pf/+/z//v7//////v7//P3/+Pr/8fX/7PP/5/D/sLfxoKnk4+r/8vf/9/n//f3/
+        /////////////v7/+/z/9vn/9Pf/8vb/8fb/8fX/9Pf/+Pr//P3//v7//////////v7/+vv/8vb/5+7/
+        y9H/WWO9KSmSkZXj6vD/+Pv//P3//////////f7/+Pr/9fj/8vb/6O7/7vP/9fj/+Pr//f7/////////
+        /v//+vv/8vb/7PP/hYraKiqKlp7i6PD/7fP/9ff/+/z//v7//////////f7/+vv/9ff/8fX/8PX/8vb/
+        8/f/9vn/+/z//v7//////////////////f7/+/z/+vv/+fr/+fr/+vv//P3//v7/////////////////
+        /P3/9fj/7PL/1d7/RUysAABhAABlg4ja6/D/+Pr//P3/////////+/z/9fj/6e7/2eD/h4/bnaXg7PH/
+        9fj/+/z//////////v7/+Pr/8PX/y9X1JDGVAABaERWDoKnp6PH/7vP/9/n//P3//////////////v7/
+        /P3/+vv/+fv/+fv/+vv//P3//v7//////////////////////////v7//v7//v7//v7//v//////////
+        /////////////v7/+fv/8PX/7PX/ipPdAABsAABlQ1Cp3Ob/7vP/9/n//f7/////////+fv/9Pj/yNH5
+        Ule2DBJ8Ljie0df+8fb/+fv//v7//////v7/+Pr/7/X/hY3YAABxAAl7AABuEBaEs7nz6fH/8fX/+vv/
+        /v7//////////////////v///v7//v7//v7/////////////////////////////////////////////
+        /////////////////////////////f3/9vn/7PL/0tn/LzidAQFsAAB0iZHb6vP/8PT/+fv//v//////
+        /v7/+Pr/8vf/r7rqAAV4AABdPUen1N//7PL/9vn//f7//////v7/+fr/7/T/yc75S1G0AABrARKAAABp
+        Qker0df/7fP/9/n//f7/////////////////////////////////////////////////////////////
+        /////////////////////////////////////////////P3/9/n/5+7/cXXNAAd2AABuMDebzdT97PL/
+        9vj//P3//////////v7/9/n/7/X/tL/uFCCLAABqHSqRvcf46fD/9Pf//f3/////////+vv/8vX/6vH/
+        yM3+JC2XAABtAAV2Agx9q7Ly7vT/9vn//f7/////////////////////////////////////////////
+        /////////////////////////////////////////////////////////////P3/9/r/4uj/WWO1AAVx
+        KTaYu8T07fT/8vb/+vv//v7//////////v7/9/n/7vX/vsn1Iy2SAABrAQ99mp/o6PD/9Pf//P3/////
+        /////P3/9/n/7vP/6fL/s7z2DBB/AABeQ0uttrr56e7/+Pr//f7/////////////////////////////
+        /////////////////////////////////////////////////////////////////////////////P3/
+        +fv/4ef6g4zNbXfFw8v27fT/8vb/+Pr//f3//////////////v7/9/n/7vT/yNL7MjucAABtBxF/nKLo
+        6fH/9Pf//P3//////////v7/+/z/9fj/7fL/6/T/jZXbLzScrrP14en/7fL/+fv//v7/////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////////////f7/+vz/8PP91dr34+f/8vb/8/f/9/r//P3//v///////////////v7/+Pr/8PX/1N3/
+        QUqmAQRxBQ98m6Dm7PL/9fj//P3//////////////v7/+/z/9ff/8PX/5ez/ytH94ej/8vb/9vj/+/z/
+        /v7/////////////////////////////////////////////////////////////////////////////
+        /////////////////////////////v7//P3/+vz/+fv/+Pr/+Pr/+vv//f3//v//////////////////
+        /v//+fv/9Pf/2+L/SVGtAABsLTaZytL58fX/9/n//f7//////////////////v7/+/z/9/n/9fj/9vn/
+        9fj/9vj/+vz//f7/////////////////////////////////////////////////////////////////
+        /////////////////////////////////////////////////v7//f7//f3//f3//f3//v7//v//////
+        ////////////////////+/z/9vn/6e//mZ7gTVarr7bp6/H/9fj/+vv//v7/////////////////////
+        /v7//f7/+/z/+/z/+/z//P3//v7/////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////////////////////////////////////f3/+Pr/9fj/6e7/4+n/8fb/9Pf/+Pr//f3/////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////////////////////////////////////////////////////v7//P3/+fv/+fv/+vv/+Pr/+vv/
+        /P3//v7/////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        /////////////////////////////////////////////////////////////////////////v7//f7/
+        /f3//P3//f7//v7//v//////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ////////////////////////////////////////////////////////////////////////////////
+        ///////4D/////////AH////////8Af////////wB/////////AH////////8Af////////wB///////
+        //AH////////8Af////////wB/////////AH////////8AfwP//////wB8Af//+Af/AHgB///wA/8AcA
+        H///AB/wBgAf//8AD/AGAB///wAH8AYAH///AAPwBAAf//8AA/AEAD///wAD8AQAP///AAPwBAB///+A
+        A/AEAP///8AD4AAA////4AcAAAH////wDgAAAf/////8AAAH//////gAAAf/////4AAAAf/////gAAAA
+        ////+AAAAAAAD//AAAAAAAAH/4AAAAAAAAf/gAAAAAAAB/+AAAAAAAAH/4AAAAAAAAf/gAAAAAAAB/+A
+        AAAAAAAP/4AAAAAAAB//wAAAAABAf/4HwAAAAYAf8APAAAADgA/gA+AAAAMAA8AD8AAABwADgAP8AAAf
+        AAOAA/4AAB8AA4ADAAAAAQADgAIAcA4AgAOABgBwDgBAA4AMAGAMADADwDwAYAwAOAfg+ABgBAAeH//4
+        AEAEAB////gAwAYAH///+ADABgAf///4AcAGAB////gBwAcAH///+APAB4A////8B+AHwH//////4A//
+        ///////gD/////////Af//////////////8=
+</value>
+  </data>
+</root>

CodeWalker/Project/Panels/EditYmapPanel.cs

@@ -325,17 +325,9 @@ namespace CodeWalker.Project.Panels
 
         private void CalcYmapExtents()
         {
+            if (populatingui) return;
             if (Ymap == null) return;
 
-            var allents = Ymap.AllEntities;
-            var allbatches = Ymap.GrassInstanceBatches;
-
-            if ((allents == null) && (allbatches == null))
-            {
-                MessageBox.Show("No items to calculate extents from.");
-                return;
-            }
-
             lock (ProjectForm.ProjectSyncRoot)
             {
                 if (Ymap.CalcExtents())

CodeWalker/Project/Panels/ProjectExplorerPanel.cs

@@ -268,6 +268,32 @@ namespace CodeWalker.Project.Panels
                     llnode.Tag = lodlight;
                 }
             }
+            if ((ymap.BoxOccluders != null) && (ymap.BoxOccluders.Length > 0))
+            {
+                var boxocclsnode = node.Nodes.Add("Box Occluders (" + ymap.BoxOccluders.Length.ToString() + ")");
+                boxocclsnode.Name = "BoxOccluders";
+                boxocclsnode.Tag = ymap;
+                var boxes = ymap.BoxOccluders;
+                for (int i = 0; i < boxes.Length; i++)
+                {
+                    var box = boxes[i];
+                    var boxnode = boxocclsnode.Nodes.Add(box.ToString());
+                    boxnode.Tag = box;
+                }
+            }
+            if ((ymap.OccludeModels != null) && (ymap.OccludeModels.Length > 0))
+            {
+                var occlmodsnode = node.Nodes.Add("Occlude Models (" + ymap.OccludeModels.Length.ToString() + ")");
+                occlmodsnode.Name = "OccludeModels";
+                occlmodsnode.Tag = ymap;
+                var models = ymap.OccludeModels;
+                for (int i = 0; i < models.Length; i++)
+                {
+                    var model = models[i];
+                    var modnode = occlmodsnode.Nodes.Add(model.ToString());
+                    modnode.Tag = model;
+                }
+            }
             if ((ymap.GrassInstanceBatches != null) && (ymap.GrassInstanceBatches.Length > 0))
             {
                 var grassbatchesnodes = node.Nodes.Add("Grass Batches (" + ymap.GrassInstanceBatches.Length.ToString() + ")");
@@ -1040,6 +1066,48 @@ namespace CodeWalker.Project.Panels
             }
             return null;
         }
+        public TreeNode FindBoxOccluderTreeNode(YmapBoxOccluder box)
+        {
+            if (box == null) return null;
+            TreeNode ymapnode = FindYmapTreeNode(box.Ymap);
+            if (ymapnode == null) return null;
+            var boxesnode = GetChildTreeNode(ymapnode, "BoxOccluders");
+            if (boxesnode == null) return null;
+            for (int i = 0; i < boxesnode.Nodes.Count; i++)
+            {
+                TreeNode boxnode = boxesnode.Nodes[i];
+                if (boxnode.Tag == box) return boxnode;
+            }
+            return null;
+        }
+        public TreeNode FindOccludeModelTreeNode(YmapOccludeModel model)
+        {
+            if (model == null) return null;
+            TreeNode ymapnode = FindYmapTreeNode(model.Ymap);
+            if (ymapnode == null) return null;
+            var modelsnode = GetChildTreeNode(ymapnode, "OccludeModels");
+            if (modelsnode == null) return null;
+            for (int i = 0; i < modelsnode.Nodes.Count; i++)
+            {
+                TreeNode modelnode = modelsnode.Nodes[i];
+                if (modelnode.Tag == model) return modelnode;
+            }
+            return null;
+        }
+        public TreeNode FindOccludeModelTriangleTreeNode(YmapOccludeModelTriangle tri)
+        {
+            if (tri == null) return null;
+            TreeNode ymapnode = FindYmapTreeNode(tri.Ymap);
+            if (ymapnode == null) return null;
+            var modelsnode = GetChildTreeNode(ymapnode, "OccludeModels");
+            if (modelsnode == null) return null;
+            for (int i = 0; i < modelsnode.Nodes.Count; i++)
+            {
+                TreeNode modelnode = modelsnode.Nodes[i];
+                if (modelnode.Tag == tri.Model) return modelnode;
+            }
+            return null;
+        }
         public TreeNode FindGrassTreeNode(YmapGrassInstanceBatch batch)
         {
             if (batch == null) return null;
@@ -1519,6 +1587,53 @@ namespace CodeWalker.Project.Panels
                 }
             }
         }
+        public void TrySelectBoxOccluderTreeNode(YmapBoxOccluder box)
+        {
+            TreeNode boxnode = FindBoxOccluderTreeNode(box);
+            if (boxnode != null)
+            {
+                if (ProjectTreeView.SelectedNode == boxnode)
+                {
+                    OnItemSelected?.Invoke(box);
+                }
+                else
+                {
+                    ProjectTreeView.SelectedNode = boxnode;
+                }
+            }
+        }
+        public void TrySelectOccludeModelTreeNode(YmapOccludeModel model)
+        {
+            TreeNode modelnode = FindOccludeModelTreeNode(model);
+            if (modelnode != null)
+            {
+                if (ProjectTreeView.SelectedNode == modelnode)
+                {
+                    OnItemSelected?.Invoke(model);
+                }
+                else
+                {
+                    ProjectTreeView.SelectedNode = modelnode;
+                }
+            }
+        }
+        public void TrySelectOccludeModelTriangleTreeNode(YmapOccludeModelTriangle tri)
+        {
+            TreeNode trinode = FindOccludeModelTriangleTreeNode(tri);
+            if (trinode != null)
+            {
+                if (ProjectTreeView.SelectedNode == trinode)
+                {
+                    OnItemSelected?.Invoke(tri);
+                }
+                else
+                {
+                    trinode.Tag = tri;//hack to allow the model's node to be selected instead
+                    ProjectTreeView.SelectedNode = trinode;
+                    trinode.Tag = tri.Model;
+                }
+            }
+        }
         public void TrySelectGrassBatchTreeNode(YmapGrassInstanceBatch grassBatch)
         {
             TreeNode grassNode = FindGrassTreeNode(grassBatch);
@@ -2024,6 +2139,22 @@ namespace CodeWalker.Project.Panels
                 tn.Text = lodlight.ToString();
             }
         }
+        public void UpdateBoxOccluderTreeNode(YmapBoxOccluder box)
+        {
+            var tn = FindBoxOccluderTreeNode(box);
+            if (tn != null)
+            {
+                tn.Text = box.ToString();
+            }
+        }
+        public void UpdateOccludeModelTreeNode(YmapOccludeModel model)
+        {
+            var tn = FindOccludeModelTreeNode(model);
+            if (tn != null)
+            {
+                tn.Text = model.ToString();
+            }
+        }
         public void UpdatePathNodeTreeNode(YndNode node)
         {
             var tn = FindPathNodeTreeNode(node);
@@ -2143,6 +2274,50 @@ namespace CodeWalker.Project.Panels
                 }
             }
         }
+        public void RemoveBoxOccluderTreeNode(YmapBoxOccluder box)
+        {
+            var ymap = box?.Ymap;
+            var tn = FindBoxOccluderTreeNode(box);
+            if ((tn != null) && (tn.Parent != null) && (box != null))
+            {
+                var pn = tn.Parent;
+                var yn = pn.Parent;
+                yn.Nodes.Remove(pn);
+                pn = yn.Nodes.Add("Box Occluders (" + (ymap?.BoxOccluders?.Length.ToString() ?? "0") + ")");
+                pn.Name = "BoxOccluders";
+                pn.Tag = ymap;
+                if (ymap.BoxOccluders != null)
+                {
+                    foreach (var b in ymap.BoxOccluders)
+                    {
+                        var ntn = pn.Nodes.Add(b.ToString());
+                        ntn.Tag = b;
+                    }
+                }
+            }
+        }
+        public void RemoveOccludeModelTreeNode(YmapOccludeModel model)
+        {
+            var ymap = model?.Ymap;
+            var tn = FindOccludeModelTreeNode(model);
+            if ((tn != null) && (tn.Parent != null) && (model != null))
+            {
+                var pn = tn.Parent;
+                var yn = pn.Parent;
+                yn.Nodes.Remove(pn);
+                pn = yn.Nodes.Add("Occlude Models (" + (ymap?.OccludeModels?.Length.ToString() ?? "0") + ")");
+                pn.Name = "OccludeModels";
+                pn.Tag = ymap;
+                if (ymap.OccludeModels != null)
+                {
+                    foreach (var m in ymap.OccludeModels)
+                    {
+                        var ntn = pn.Nodes.Add(m.ToString());
+                        ntn.Tag = m;
+                    }
+                }
+            }
+        }
         public void RemoveGrassBatchTreeNode(YmapGrassInstanceBatch batch)
         {
             var tn = FindGrassTreeNode(batch);

CodeWalker/Project/ProjectForm.cs

@@ -43,6 +43,9 @@ namespace CodeWalker.Project
         private YmapEntityDef CurrentEntity;
         private YmapCarGen CurrentCarGen;
         private YmapLODLight CurrentLodLight;
+        private YmapBoxOccluder CurrentBoxOccluder;
+        private YmapOccludeModel CurrentOccludeModel;
+        private YmapOccludeModelTriangle CurrentOccludeModelTri;
         private YmapGrassInstanceBatch CurrentGrassBatch;
 
         private YtypFile CurrentYtypFile;
@@ -395,6 +398,27 @@ namespace CodeWalker.Project
                 (panel) => { panel.SetLodLight(CurrentLodLight); }, //updateFunc
                 (panel) => { return panel.CurrentLodLight == CurrentLodLight; }); //findFunc
         }
+        public void ShowEditYmapBoxOccluderPanel(bool promote)
+        {
+            ShowPanel(promote,
+                () => { return new EditYmapBoxOccluderPanel(this); }, //createFunc
+                (panel) => { panel.SetBoxOccluder(CurrentBoxOccluder); }, //updateFunc
+                (panel) => { return panel.CurrentBoxOccluder == CurrentBoxOccluder; }); //findFunc
+        }
+        public void ShowEditYmapOccludeModelPanel(bool promote)
+        {
+            ShowPanel(promote,
+                () => { return new EditYmapOccludeModelPanel(this); }, //createFunc
+                (panel) => { panel.SetOccludeModel(CurrentOccludeModel); }, //updateFunc
+                (panel) => { return panel.CurrentOccludeModel == CurrentOccludeModel; }); //findFunc
+        }
+        public void ShowEditYmapOccludeModelTrianglePanel(bool promote)
+        {
+            ShowPanel(promote,
+                () => { return new EditYmapOccludeModelPanel(this); }, //createFunc
+                (panel) => { panel.SetOccludeModelTriangle(CurrentOccludeModelTri); }, //updateFunc
+                (panel) => { return panel.CurrentOccludeModel == CurrentOccludeModel; }); //findFunc
+        }
         public void ShowEditYmapGrassBatchPanel(bool promote)
         {
             ShowPanel(promote,
@@ -642,6 +666,18 @@ namespace CodeWalker.Project
             {
                 ShowEditYmapLodLightPanel(promote);
             }
+            else if (CurrentBoxOccluder != null)
+            {
+                ShowEditYmapBoxOccluderPanel(promote);
+            }
+            else if (CurrentOccludeModelTri != null)
+            {
+                ShowEditYmapOccludeModelTrianglePanel(promote);
+            }
+            else if (CurrentOccludeModel != null)
+            {
+                ShowEditYmapOccludeModelPanel(promote);
+            }
             else if (CurrentGrassBatch != null)
             {
                 ShowEditYmapGrassBatchPanel(promote);
@@ -769,6 +805,9 @@ namespace CodeWalker.Project
             CurrentEntity = item as YmapEntityDef;
             CurrentCarGen = item as YmapCarGen;
             CurrentLodLight = item as YmapLODLight;
+            CurrentBoxOccluder = item as YmapBoxOccluder;
+            CurrentOccludeModelTri = item as YmapOccludeModelTriangle;
+            CurrentOccludeModel = (item as YmapOccludeModel) ?? CurrentOccludeModelTri?.Model;
             CurrentGrassBatch = item as YmapGrassInstanceBatch;
             CurrentYtypFile = item as YtypFile;
             CurrentArchetype = item as Archetype;
@@ -841,6 +880,18 @@ namespace CodeWalker.Project
             {
                 CurrentYmapFile = CurrentLodLight.Ymap;
             }
+            else if (CurrentBoxOccluder != null)
+            {
+                CurrentYmapFile = CurrentBoxOccluder.Ymap;
+            }
+            else if (CurrentOccludeModel != null)
+            {
+                CurrentYmapFile = CurrentOccludeModel.Ymap;
+            }
+            else if (CurrentOccludeModelTri != null)
+            {
+                CurrentYmapFile = CurrentOccludeModelTri.Ymap;
+            }
             else if (CurrentGrassBatch != null)
             {
                 CurrentYmapFile = CurrentGrassBatch.Ymap;
@@ -1571,6 +1622,9 @@ namespace CodeWalker.Project
             else if (sel.CollisionBounds != null) return NewCollisionBounds(sel.CollisionBounds.Type, sel.CollisionBounds, copyPosition, selectNew);
             else if (sel.EntityDef != null) return NewEntity(sel.EntityDef, copyPosition, selectNew);
             else if (sel.CarGenerator != null) return NewCarGen(sel.CarGenerator, copyPosition, selectNew);
+            else if (sel.LodLight != null) return NewLodLight(sel.LodLight, copyPosition, selectNew);
+            else if (sel.BoxOccluder != null) return NewBoxOccluder(sel.BoxOccluder, copyPosition, selectNew);
+            else if (sel.OccludeModelTri != null) return NewOccludeModelTriangle(sel.OccludeModelTri, copyPosition, selectNew);
             else if (sel.PathNode != null) return NewPathNode(sel.PathNode, copyPosition, selectNew);
             else if (sel.NavPoly != null) return NewNavPoly(sel.NavPoly, copyPosition, selectNew);
             else if (sel.NavPoint != null) return NewNavPoint(sel.NavPoint, copyPosition, selectNew);
@@ -1596,6 +1650,9 @@ namespace CodeWalker.Project
             else if (sel.CollisionBounds != null) DeleteCollisionBounds();
             else if (sel.EntityDef != null) DeleteEntity();
             else if (sel.CarGenerator != null) DeleteCarGen();
+            else if (sel.LodLight != null) DeleteLodLight();
+            else if (sel.BoxOccluder != null) DeleteBoxOccluder();
+            else if (sel.OccludeModelTri != null) DeleteOccludeModelTriangle();
             else if (sel.PathNode != null) DeletePathNode();
             else if (sel.NavPoly != null) DeleteNavPoly();
             else if (sel.NavPoint != null) DeleteNavPoint();
@@ -1613,6 +1670,9 @@ namespace CodeWalker.Project
             else if (sel.CollisionBounds != null) SetProjectItem(sel.CollisionBounds, false);
             else if (sel.EntityDef != null) SetProjectItem(sel.EntityDef, false);
             else if (sel.CarGenerator != null) SetProjectItem(sel.CarGenerator, false);
+            else if (sel.LodLight != null) SetProjectItem(sel.LodLight, false);
+            else if (sel.BoxOccluder != null) SetProjectItem(sel.BoxOccluder, false);
+            else if (sel.OccludeModelTri != null) SetProjectItem(sel.OccludeModelTri, false);
             else if (sel.PathNode != null) SetProjectItem(sel.PathNode, false);
             else if (sel.NavPoly != null) SetProjectItem(sel.NavPoly, false);
             else if (sel.NavPoint != null) SetProjectItem(sel.NavPoint, false);
@@ -2439,6 +2499,364 @@ namespace CodeWalker.Project
             return CurrentLodLight == lodlight;
         }
 
+        public YmapBoxOccluder NewBoxOccluder(YmapBoxOccluder copy = null, bool copyPosition = false, bool selectNew = true)
+        {
+            if (CurrentYmapFile == null) return null;
+
+            Vector3 pos = GetSpawnPos(10.0f);
+
+            YmapBoxOccluder bo;
+
+            if (copy != null)
+            {
+                bo = new YmapBoxOccluder(CurrentYmapFile, copy._Box);
+            }
+            else
+            {
+                bo = new YmapBoxOccluder(CurrentYmapFile, new BoxOccluder());
+                //...
+            }
+
+            if (!copyPosition || (copy == null))
+            {
+                bo.Position = pos;
+            }
+
+
+
+            if (WorldForm != null)
+            {
+                lock (WorldForm.RenderSyncRoot) //don't try to do this while rendering...
+                {
+                    CurrentYmapFile.AddBoxOccluder(bo);
+                }
+
+                WorldForm.UpdateBoxOccluderGraphics(bo);
+
+            }
+            else
+            {
+                CurrentYmapFile.AddBoxOccluder(bo);
+            }
+
+
+            if (selectNew)
+            {
+                LoadProjectTree();
+                ProjectExplorer?.TrySelectBoxOccluderTreeNode(bo);
+                CurrentBoxOccluder = bo;
+                ShowEditYmapBoxOccluderPanel(false);
+            }
+            return bo;
+        }
+        public void AddBoxOccluderToProject()
+        {
+            if (CurrentBoxOccluder == null) return;
+
+            if (!YmapExistsInProject(CurrentBoxOccluder.Ymap))
+            {
+                var box = CurrentBoxOccluder;
+
+                CurrentYmapFile = box.Ymap;
+                CurrentYmapFile.HasChanged = true;
+                AddYmapToProject(CurrentYmapFile);
+
+                CurrentBoxOccluder = box; //bug fix for some reason the treeview selects the project node here.
+                CurrentYmapFile = box.Ymap;
+                ProjectExplorer?.TrySelectBoxOccluderTreeNode(box);
+            }
+        }
+        public bool DeleteBoxOccluder()
+        {
+            if (CurrentYmapFile == null) return false;
+            if (CurrentBoxOccluder == null) return false;
+            if (CurrentBoxOccluder.Ymap != CurrentYmapFile) return false;
+
+            //if (MessageBox.Show("Are you sure you want to delete this box occluder?\n" + CurrentBoxOccluder.ToString() + "\n\nThis operation cannot be undone. Continue?", "Confirm delete", MessageBoxButtons.YesNo) != DialogResult.Yes)
+            //{
+            //    return true;
+            //}
+
+            var delbox = CurrentBoxOccluder;
+            
+            bool res = false;
+            if (WorldForm != null)
+            {
+                lock (WorldForm.RenderSyncRoot) //don't try to do this while rendering...
+                {
+                    res = CurrentYmapFile.RemoveBoxOccluder(CurrentBoxOccluder);
+                    //WorldForm.SelectItem(null, null, null);
+                }
+            }
+            else
+            {
+                res = CurrentYmapFile.RemoveBoxOccluder(CurrentBoxOccluder);
+            }
+            if (!res)
+            {
+                MessageBox.Show("Unable to delete the box occluder. This shouldn't happen!");
+            }
+
+            ProjectExplorer?.RemoveBoxOccluderTreeNode(CurrentBoxOccluder);
+            ProjectExplorer?.SetYmapHasChanged(CurrentYmapFile, true);
+
+            ClosePanel((EditYmapBoxOccluderPanel p) => { return p.Tag == delbox; });
+
+            CurrentBoxOccluder = null;
+            CurrentYmapFile = null;
+
+            if (WorldForm != null)
+            {
+                WorldForm.SelectItem(null);
+            }
+
+            return true;
+        }
+        public bool IsCurrentBoxOccluder(YmapBoxOccluder box)
+        {
+            return CurrentBoxOccluder == box;
+        }
+
+        public YmapOccludeModel NewOccludeModel(YmapOccludeModel copy = null, bool copyPosition = false, bool selectNew = true)
+        {
+            if (CurrentYmapFile == null) return null;
+
+            Vector3 pos = GetSpawnPos(10.0f);
+
+            YmapOccludeModel om;
+
+            if (copy != null)
+            {
+                om = new YmapOccludeModel(CurrentYmapFile, copy._OccludeModel);
+            }
+            else
+            {
+                om = new YmapOccludeModel(CurrentYmapFile, new OccludeModel());
+                //...
+            }
+
+            if (!copyPosition || (copy == null))
+            {
+                //om.Center = pos;
+            }
+
+
+
+            if (WorldForm != null)
+            {
+                lock (WorldForm.RenderSyncRoot) //don't try to do this while rendering...
+                {
+                    CurrentYmapFile.AddOccludeModel(om);
+                }
+
+                WorldForm.UpdateOccludeModelGraphics(om);
+
+            }
+            else
+            {
+                CurrentYmapFile.AddOccludeModel(om);
+            }
+
+
+            if (selectNew)
+            {
+                LoadProjectTree();
+                ProjectExplorer?.TrySelectOccludeModelTreeNode(om);
+                CurrentOccludeModel = om;
+                ShowEditYmapOccludeModelPanel(false);
+            }
+            return om;
+        }
+        public void AddOccludeModelToProject()
+        {
+            if (CurrentOccludeModel == null) return;
+
+            if (!YmapExistsInProject(CurrentOccludeModel.Ymap))
+            {
+                var model = CurrentOccludeModel;
+
+                CurrentYmapFile = model.Ymap;
+                CurrentYmapFile.HasChanged = true;
+                AddYmapToProject(CurrentYmapFile);
+
+                CurrentOccludeModel = model; //bug fix for some reason the treeview selects the project node here.
+                CurrentYmapFile = model.Ymap;
+                ProjectExplorer?.TrySelectOccludeModelTreeNode(model);
+            }
+        }
+        public bool DeleteOccludeModel()
+        {
+            if (CurrentYmapFile == null) return false;
+            if (CurrentOccludeModel == null) return false;
+            if (CurrentOccludeModel.Ymap != CurrentYmapFile) return false;
+
+            //if (MessageBox.Show("Are you sure you want to delete this occlude model?\n" + CurrentOccludeModel.ToString() + "\n\nThis operation cannot be undone. Continue?", "Confirm delete", MessageBoxButtons.YesNo) != DialogResult.Yes)
+            //{
+            //    return true;
+            //}
+
+            var delmodel = CurrentOccludeModel;
+
+            bool res = false;
+            if (WorldForm != null)
+            {
+                lock (WorldForm.RenderSyncRoot) //don't try to do this while rendering...
+                {
+                    res = CurrentYmapFile.RemoveOccludeModel(CurrentOccludeModel);
+                    //WorldForm.SelectItem(null, null, null);
+                }
+            }
+            else
+            {
+                res = CurrentYmapFile.RemoveOccludeModel(CurrentOccludeModel);
+            }
+            if (!res)
+            {
+                MessageBox.Show("Unable to delete the occlude model. This shouldn't happen!");
+            }
+
+            ProjectExplorer?.RemoveOccludeModelTreeNode(CurrentOccludeModel);
+            ProjectExplorer?.SetYmapHasChanged(CurrentYmapFile, true);
+
+            ClosePanel((EditYmapOccludeModelPanel p) => { return p.Tag == delmodel; });
+
+            CurrentOccludeModel = null;
+            CurrentYmapFile = null;
+
+            if (WorldForm != null)
+            {
+                WorldForm.SelectItem(null);
+            }
+
+            return true;
+        }
+        public bool IsCurrentOccludeModel(YmapOccludeModel model)
+        {
+            return CurrentOccludeModel == model;
+        }
+
+        public YmapOccludeModelTriangle NewOccludeModelTriangle(YmapOccludeModelTriangle copy = null, bool copyPosition = false, bool selectNew = true)
+        {
+            if (CurrentYmapFile == null) return null;
+
+            Vector3 pos = GetSpawnPos(10.0f);
+
+            YmapOccludeModelTriangle ot;
+
+            if (copy != null)
+            {
+                ot = new YmapOccludeModelTriangle(copy.Model, copy.Corner1, copy.Corner2, copy.Corner3, copy.Model.Triangles?.Length ?? 0);
+            }
+            else
+            {
+                ot = new YmapOccludeModelTriangle(CurrentOccludeModel, pos, pos + Vector3.UnitY, pos + Vector3.UnitX, CurrentOccludeModel?.Triangles?.Length ?? 0);
+                //...
+            }
+
+            if (!copyPosition || (copy == null))
+            {
+                //om.Center = pos;
+            }
+
+
+
+            if (WorldForm != null)
+            {
+                lock (WorldForm.RenderSyncRoot) //don't try to do this while rendering...
+                {
+                    CurrentYmapFile.AddOccludeModelTriangle(ot);
+                }
+
+                WorldForm.UpdateOccludeModelGraphics(ot.Model);
+
+            }
+            else
+            {
+                CurrentYmapFile.AddOccludeModelTriangle(ot);
+            }
+
+
+            if (selectNew)
+            {
+                LoadProjectTree();
+                ProjectExplorer?.TrySelectOccludeModelTriangleTreeNode(ot);
+                CurrentOccludeModel = ot.Model;
+                CurrentOccludeModelTri = ot;
+                ShowEditYmapOccludeModelTrianglePanel(false);
+            }
+            return ot;
+        }
+        public void AddOccludeModelTriangleToProject()
+        {
+            if (CurrentOccludeModelTri == null) return;
+
+            if (!YmapExistsInProject(CurrentOccludeModelTri.Ymap))
+            {
+                var tri = CurrentOccludeModelTri;
+
+                CurrentYmapFile = tri.Ymap;
+                CurrentYmapFile.HasChanged = true;
+                AddYmapToProject(CurrentYmapFile);
+
+                CurrentOccludeModelTri = tri; //bug fix for some reason the treeview selects the project node here.
+                CurrentOccludeModel = tri.Model;
+                CurrentYmapFile = tri.Ymap;
+                ProjectExplorer?.TrySelectOccludeModelTriangleTreeNode(tri);
+            }
+        }
+        public bool DeleteOccludeModelTriangle()
+        {
+            if (CurrentYmapFile == null) return false;
+            if (CurrentOccludeModelTri == null) return false;
+            if (CurrentOccludeModelTri.Ymap != CurrentYmapFile) return false;
+
+            //if (MessageBox.Show("Are you sure you want to delete this occlude model triangle?\n" + CurrentOccludeModelTri.ToString() + "\n\nThis operation cannot be undone. Continue?", "Confirm delete", MessageBoxButtons.YesNo) != DialogResult.Yes)
+            //{
+            //    return true;
+            //}
+
+            var deltri = CurrentOccludeModelTri;
+
+            bool res = false;
+            if (WorldForm != null)
+            {
+                lock (WorldForm.RenderSyncRoot) //don't try to do this while rendering...
+                {
+                    res = CurrentYmapFile.RemoveOccludeModelTriangle(CurrentOccludeModelTri);
+                    //WorldForm.SelectItem(null, null, null);
+                }
+            }
+            else
+            {
+                res = CurrentYmapFile.RemoveOccludeModelTriangle(CurrentOccludeModelTri);
+            }
+            if (!res)
+            {
+                MessageBox.Show("Unable to delete the occlude model triangle. This shouldn't happen!");
+            }
+
+            ProjectExplorer?.UpdateOccludeModelTreeNode(CurrentOccludeModelTri?.Model);
+            ProjectExplorer?.SetYmapHasChanged(CurrentYmapFile, true);
+
+            ClosePanel((EditYmapOccludeModelPanel p) => { return p.CurrentTriangle == deltri; });
+
+            CurrentOccludeModelTri = null;
+            CurrentOccludeModel = null;
+            CurrentYmapFile = null;
+
+            if (WorldForm != null)
+            {
+                WorldForm.UpdateOccludeModelGraphics(deltri.Model);
+                WorldForm.SelectItem(null);
+            }
+
+            return true;
+        }
+        public bool IsCurrentOccludeModelTriangle(YmapOccludeModelTriangle tri)
+        {
+            return CurrentOccludeModelTri == tri;
+        }
+
         private void ImportMenyooXml()
         {
             if (CurrentProjectFile == null)
@@ -7043,6 +7461,8 @@ namespace CodeWalker.Project
                     var ent = sel.EntityDef;
                     var cargen = sel.CarGenerator;
                     var lodlight = sel.LodLight;
+                    var boxoccluder = sel.BoxOccluder;
+                    var occludetri = sel.OccludeModelTri;
                     var grassbatch = sel.GrassBatch;
                     var collvert = sel.CollisionVertex;
                     var collpoly = sel.CollisionPoly;
@@ -7058,7 +7478,7 @@ namespace CodeWalker.Project
                     var audiopl = sel.Audio;
                     Archetype arch = mlo?.Archetype ?? ent?.MloParent?.Archetype ?? ent?.Archetype;
                     YtypFile ytyp = mlo?.Archetype?.Ytyp ?? ent?.MloParent?.Archetype?.Ytyp ?? ent?.Archetype?.Ytyp ?? room?.OwnerMlo?.Ytyp;
-                    YmapFile ymap = ent?.Ymap ?? cargen?.Ymap ?? lodlight?.Ymap ?? grassbatch?.Ymap ?? mlo?.Ymap;
+                    YmapFile ymap = ent?.Ymap ?? cargen?.Ymap ?? lodlight?.Ymap ?? boxoccluder?.Ymap ?? occludetri?.Ymap ?? grassbatch?.Ymap ?? mlo?.Ymap;
                     YbnFile ybn = collbound?.GetRootYbn();
                     YndFile ynd = pathnode?.Ynd;
                     YnvFile ynv = navpoly?.Ynv ?? navpoint?.Ynv ?? navportal?.Ynv;
@@ -7081,6 +7501,14 @@ namespace CodeWalker.Project
                         {
                             ProjectExplorer?.TrySelectLodLightTreeNode(lodlight);
                         }
+                        if (wasmult || (boxoccluder != CurrentBoxOccluder))
+                        {
+                            ProjectExplorer?.TrySelectBoxOccluderTreeNode(boxoccluder);
+                        }
+                        if (wasmult || (occludetri != CurrentOccludeModelTri))
+                        {
+                            ProjectExplorer?.TrySelectOccludeModelTriangleTreeNode(occludetri);
+                        }
                         if (wasmult || (grassbatch != CurrentGrassBatch))
                         {
                             ProjectExplorer?.TrySelectGrassBatchTreeNode(grassbatch);
@@ -7185,6 +7613,9 @@ namespace CodeWalker.Project
                     CurrentEntity = ent ?? mlo;
                     CurrentCarGen = cargen;
                     CurrentLodLight = lodlight;
+                    CurrentBoxOccluder = boxoccluder;
+                    CurrentOccludeModelTri = occludetri;
+                    CurrentOccludeModel = occludetri?.Model;
                     CurrentGrassBatch = grassbatch;
                     CurrentYbnFile = ybn;
                     CurrentCollisionVertex = collvert;
@@ -7256,6 +7687,14 @@ namespace CodeWalker.Project
                     {
                         OnWorldLodLightModified(sel.LodLight);
                     }
+                    else if (sel.BoxOccluder != null)
+                    {
+                        OnWorldBoxOccluderModified(sel.BoxOccluder);
+                    }
+                    else if (sel.OccludeModelTri != null)
+                    {
+                        OnWorldOccludeModelTriModified(sel.OccludeModelTri);
+                    }
                     else if (sel.PathNode != null)
                     {
                         OnWorldPathNodeModified(sel.PathNode, sel.PathLink);
@@ -7437,6 +7876,76 @@ namespace CodeWalker.Project
                 }
             }
 
+        }
+        private void OnWorldBoxOccluderModified(YmapBoxOccluder box)
+        {
+            if (box?.Ymap == null) return;
+
+            if (CurrentProjectFile == null)
+            {
+                NewProject();
+            }
+
+            if (!YmapExistsInProject(box.Ymap))
+            {
+                box.Ymap.HasChanged = true;
+                AddYmapToProject(box.Ymap);
+                ProjectExplorer?.TrySelectBoxOccluderTreeNode(box);
+            }
+
+            if (box != CurrentBoxOccluder)
+            {
+                CurrentBoxOccluder = box;
+                ProjectExplorer?.TrySelectBoxOccluderTreeNode(box);
+            }
+
+            if (box == CurrentBoxOccluder)
+            {
+                ShowEditYmapBoxOccluderPanel(false);
+
+                ProjectExplorer?.UpdateBoxOccluderTreeNode(box);
+
+                if (box.Ymap != null)
+                {
+                    SetYmapHasChanged(true);
+                }
+            }
+
+        }
+        private void OnWorldOccludeModelTriModified(YmapOccludeModelTriangle tri)
+        {
+            if (tri?.Ymap == null) return;
+
+            if (CurrentProjectFile == null)
+            {
+                NewProject();
+            }
+
+            if (!YmapExistsInProject(tri.Ymap))
+            {
+                tri.Ymap.HasChanged = true;
+                AddYmapToProject(tri.Ymap);
+                ProjectExplorer?.TrySelectOccludeModelTriangleTreeNode(tri);
+            }
+
+            if (tri != CurrentOccludeModelTri)
+            {
+                CurrentOccludeModelTri = tri;
+                ProjectExplorer?.TrySelectOccludeModelTriangleTreeNode(tri);
+            }
+
+            if (tri == CurrentOccludeModelTri)
+            {
+                ShowEditYmapOccludeModelTrianglePanel(false);
+
+                //ProjectExplorer?.UpdateOccludeModelTriangleTreeNode(tri);
+
+                if (tri.Ymap != null)
+                {
+                    SetYmapHasChanged(true);
+                }
+            }
+
         }
         private void OnWorldCollisionVertexModified(BoundVertex vert)
         {

CodeWalker/Project/UndoStep.cs

@@ -597,6 +597,259 @@ namespace CodeWalker.Project
     }
 
 
+    public abstract class BoxOccluderUndoStep : UndoStep
+    {
+        public YmapBoxOccluder BoxOccluder { get; set; }
+
+        protected void UpdateGraphics(WorldForm wf)
+        {
+            if (BoxOccluder != null)
+            {
+                wf.UpdateBoxOccluderGraphics(BoxOccluder);
+            }
+        }
+    }
+    public class BoxOccluderPositionUndoStep : BoxOccluderUndoStep
+    {
+        public Vector3 StartPosition { get; set; }
+        public Vector3 EndPosition { get; set; }
+
+        public BoxOccluderPositionUndoStep(YmapBoxOccluder box, Vector3 startpos)
+        {
+            BoxOccluder = box;
+            StartPosition = startpos;
+            EndPosition = box?.Position ?? Vector3.Zero;
+        }
+
+        private void Update(WorldForm wf, ref MapSelection sel, Vector3 p)
+        {
+            BoxOccluder.Position = p;
+
+            if (BoxOccluder != sel.BoxOccluder) wf.SelectObject(BoxOccluder);
+            wf.SetWidgetPosition(p);
+
+            UpdateGraphics(wf);
+        }
+
+        public override void Undo(WorldForm wf, ref MapSelection sel)
+        {
+            Update(wf, ref sel, StartPosition);
+        }
+
+        public override void Redo(WorldForm wf, ref MapSelection sel)
+        {
+            Update(wf, ref sel, EndPosition);
+        }
+
+        public override string ToString()
+        {
+            return "BoxOccluder " + (BoxOccluder?.Index.ToString() ?? "") + ": Position";
+        }
+    }
+    public class BoxOccluderRotationUndoStep : BoxOccluderUndoStep
+    {
+        public Quaternion StartRotation { get; set; }
+        public Quaternion EndRotation { get; set; }
+
+        public BoxOccluderRotationUndoStep(YmapBoxOccluder box, Quaternion startrot)
+        {
+            BoxOccluder = box;
+            StartRotation = startrot;
+            EndRotation = box?.Orientation ?? Quaternion.Identity;
+        }
+
+
+        private void Update(WorldForm wf, ref MapSelection sel, Quaternion q)
+        {
+            BoxOccluder.Orientation = q;
+
+            if (BoxOccluder != sel.BoxOccluder) wf.SelectObject(BoxOccluder);
+            wf.SetWidgetRotation(q);
+
+            UpdateGraphics(wf);
+        }
+
+        public override void Undo(WorldForm wf, ref MapSelection sel)
+        {
+            Update(wf, ref sel, StartRotation);
+        }
+
+        public override void Redo(WorldForm wf, ref MapSelection sel)
+        {
+            Update(wf, ref sel, EndRotation);
+        }
+
+        public override string ToString()
+        {
+            return "BoxOccluder " + (BoxOccluder?.Index.ToString() ?? "") + ": Rotation";
+        }
+    }
+    public class BoxOccluderScaleUndoStep : BoxOccluderUndoStep
+    {
+        public Vector3 StartScale { get; set; }
+        public Vector3 EndScale { get; set; }
+
+        public BoxOccluderScaleUndoStep(YmapBoxOccluder box, Vector3 startscale)
+        {
+            BoxOccluder = box;
+            StartScale = startscale;
+            EndScale = box?.Size ?? new Vector3(1.0f);
+        }
+
+        private void Update(WorldForm wf, ref MapSelection sel, Vector3 s)
+        {
+            BoxOccluder.SetSize(s);
+
+            if (BoxOccluder != sel.BoxOccluder) wf.SelectObject(BoxOccluder);
+            wf.SetWidgetScale(s);
+
+            UpdateGraphics(wf);
+        }
+
+
+        public override void Undo(WorldForm wf, ref MapSelection sel)
+        {
+            Update(wf, ref sel, StartScale);
+        }
+
+        public override void Redo(WorldForm wf, ref MapSelection sel)
+        {
+            Update(wf, ref sel, EndScale);
+        }
+
+        public override string ToString()
+        {
+            return "BoxOccluder " + (BoxOccluder?.Index.ToString() ?? "") + ": Scale";
+        }
+    }
+
+
+    public abstract class OccludeModelTriUndoStep : UndoStep
+    {
+        public YmapOccludeModelTriangle OccludeModelTri { get; set; }
+
+        protected void UpdateGraphics(WorldForm wf)
+        {
+            if (OccludeModelTri != null)
+            {
+                wf.UpdateOccludeModelGraphics(OccludeModelTri.Model);
+            }
+        }
+    }
+    public class OccludeModelTriPositionUndoStep : OccludeModelTriUndoStep
+    {
+        public Vector3 StartPosition { get; set; }
+        public Vector3 EndPosition { get; set; }
+
+        public OccludeModelTriPositionUndoStep(YmapOccludeModelTriangle tri, Vector3 startpos)
+        {
+            OccludeModelTri = tri;
+            StartPosition = startpos;
+            EndPosition = tri?.Center ?? Vector3.Zero;
+        }
+
+        private void Update(WorldForm wf, ref MapSelection sel, Vector3 p)
+        {
+            OccludeModelTri.Center = p;
+
+            if (OccludeModelTri != sel.OccludeModelTri) wf.SelectObject(OccludeModelTri);
+            wf.SetWidgetPosition(p);
+
+            UpdateGraphics(wf);
+        }
+
+        public override void Undo(WorldForm wf, ref MapSelection sel)
+        {
+            Update(wf, ref sel, StartPosition);
+        }
+
+        public override void Redo(WorldForm wf, ref MapSelection sel)
+        {
+            Update(wf, ref sel, EndPosition);
+        }
+
+        public override string ToString()
+        {
+            return "OccludeModel Triangle " + (OccludeModelTri?.Index.ToString() ?? "") + ": Position";
+        }
+    }
+    public class OccludeModelTriRotationUndoStep : OccludeModelTriUndoStep
+    {
+        public Quaternion StartRotation { get; set; }
+        public Quaternion EndRotation { get; set; }
+
+        public OccludeModelTriRotationUndoStep(YmapOccludeModelTriangle tri, Quaternion startrot)
+        {
+            OccludeModelTri = tri;
+            StartRotation = startrot;
+            EndRotation = tri?.Orientation ?? Quaternion.Identity;
+        }
+
+
+        private void Update(WorldForm wf, ref MapSelection sel, Quaternion q)
+        {
+            OccludeModelTri.Orientation = q;
+
+            if (OccludeModelTri != sel.OccludeModelTri) wf.SelectObject(OccludeModelTri);
+            wf.SetWidgetRotation(q);
+
+            UpdateGraphics(wf);
+        }
+
+        public override void Undo(WorldForm wf, ref MapSelection sel)
+        {
+            Update(wf, ref sel, StartRotation);
+        }
+
+        public override void Redo(WorldForm wf, ref MapSelection sel)
+        {
+            Update(wf, ref sel, EndRotation);
+        }
+
+        public override string ToString()
+        {
+            return "OccludeModel Triangle " + (OccludeModelTri?.Index.ToString() ?? "") + ": Rotation";
+        }
+    }
+    public class OccludeModelTriScaleUndoStep : OccludeModelTriUndoStep
+    {
+        public Vector3 StartScale { get; set; }
+        public Vector3 EndScale { get; set; }
+
+        public OccludeModelTriScaleUndoStep(YmapOccludeModelTriangle tri, Vector3 startscale)
+        {
+            OccludeModelTri = tri;
+            StartScale = startscale;
+            EndScale = tri?.Scale ?? new Vector3(1.0f);
+        }
+
+        private void Update(WorldForm wf, ref MapSelection sel, Vector3 s)
+        {
+            OccludeModelTri.Scale = s;
+
+            if (OccludeModelTri != sel.OccludeModelTri) wf.SelectObject(OccludeModelTri);
+            wf.SetWidgetScale(s);
+
+            UpdateGraphics(wf);
+        }
+
+
+        public override void Undo(WorldForm wf, ref MapSelection sel)
+        {
+            Update(wf, ref sel, StartScale);
+        }
+
+        public override void Redo(WorldForm wf, ref MapSelection sel)
+        {
+            Update(wf, ref sel, EndScale);
+        }
+
+        public override string ToString()
+        {
+            return "OccludeModel Triangle " + (OccludeModelTri?.Index.ToString() ?? "") + ": Scale";
+        }
+    }
+
 
 
     public class CollisionPositionUndoStep : UndoStep

CodeWalker/Rendering/Renderer.cs

@@ -936,6 +936,16 @@ namespace CodeWalker.Rendering
             SelectionTriVerts.Add(v1);
         }
 
+        public void RenderSelectionTriangleOutline(Vector3 p1, Vector3 p2, Vector3 p3, uint col)
+        {
+            SelectionLineVerts.Add(new VertexTypePC() { Position = p1, Colour = col });
+            SelectionLineVerts.Add(new VertexTypePC() { Position = p2, Colour = col });
+            SelectionLineVerts.Add(new VertexTypePC() { Position = p2, Colour = col });
+            SelectionLineVerts.Add(new VertexTypePC() { Position = p3, Colour = col });
+            SelectionLineVerts.Add(new VertexTypePC() { Position = p3, Colour = col });
+            SelectionLineVerts.Add(new VertexTypePC() { Position = p1, Colour = col });
+        }
+
         public void RenderSelectionCone(Vector3 position, Vector3 ax, Vector3 ay, Vector3 dir, float radius, float height, uint col)
         {
             const int Reso = 36;

CodeWalker/World/MapSelection.cs

@@ -54,7 +54,7 @@ namespace CodeWalker
         public YmapGrassInstanceBatch GrassBatch { get; set; }
         public YmapLODLight LodLight { get; set; }
         public YmapBoxOccluder BoxOccluder { get; set; }
-        public YmapOccludeModel OccludeModel { get; set; }
+        public YmapOccludeModelTriangle OccludeModelTri { get; set; }
         public YmapEntityDef MloEntityDef { get; set; }
         public MCMloRoomDef MloRoomDef { get; set; }
         public WaterQuad WaterQuad { get; set; }
@@ -110,7 +110,7 @@ namespace CodeWalker
                     (TrainTrackNode != null) ||
                     (LodLight != null) ||
                     (BoxOccluder != null) ||
-                    (OccludeModel != null) ||
+                    (OccludeModelTri != null) ||
                     (MloEntityDef != null) ||
                     (ScenarioNode != null) ||
                     (Audio != null) ||
@@ -137,7 +137,7 @@ namespace CodeWalker
                 || (LodLight != mhit.LodLight)
                 || (GrassBatch != mhit.GrassBatch)
                 || (BoxOccluder != mhit.BoxOccluder)
-                || (OccludeModel != mhit.OccludeModel)
+                || (OccludeModelTri != mhit.OccludeModelTri)
                 || (WaterQuad != mhit.WaterQuad)
                 || (CollisionBounds != mhit.CollisionBounds)
                 || (CollisionPoly != mhit.CollisionPoly)
@@ -164,7 +164,7 @@ namespace CodeWalker
                 || (LodLight != null)
                 || (GrassBatch != null)
                 || (BoxOccluder != null)
-                || (OccludeModel != null)
+                || (OccludeModelTri != null)
                 || (WaterQuad != null)
                 || (CollisionBounds != null)
                 || (CollisionPoly != null)
@@ -193,7 +193,7 @@ namespace CodeWalker
             CarGenerator = null;
             GrassBatch = null;
             BoxOccluder = null;
-            OccludeModel = null;
+            OccludeModelTri = null;
             WaterQuad = null;
             CollisionBounds = null;
             CollisionPoly = null;
@@ -269,9 +269,9 @@ namespace CodeWalker
             {
                 name = "BoxOccluder " + (BoxOccluder.Ymap?.Name ?? "") + ": " + BoxOccluder.Index.ToString();
             }
-            else if (OccludeModel != null)
+            else if (OccludeModelTri != null)
             {
-                name = "OccludeModel " + (OccludeModel.Ymap?.Name ?? "") + ": " + OccludeModel.Index.ToString();
+                name = "OccludeModel " + (OccludeModelTri.Ymap?.Name ?? "") + ": " + (OccludeModelTri.Model?.Index??0).ToString() + ":" + OccludeModelTri.Index.ToString();
             }
             else if (WaterQuad != null)
             {
@@ -337,6 +337,8 @@ namespace CodeWalker
             if (EntityDef != null) return true;
             if (CarGenerator != null) return true;
             if (LodLight != null) return true;
+            if (BoxOccluder != null) return true;
+            if (OccludeModelTri != null) return true;
             if (CollisionBounds != null) return true;
             if (CollisionPoly != null) return true;
             if (CollisionVertex != null) return true;
@@ -423,6 +425,24 @@ namespace CodeWalker
                     case WidgetMode.Scale: return new LodLightScaleUndoStep(LodLight, startScale);
                 }
             }
+            else if (BoxOccluder != null)
+            {
+                switch (mode)
+                {
+                    case WidgetMode.Position: return new BoxOccluderPositionUndoStep(BoxOccluder, startPos);
+                    case WidgetMode.Rotation: return new BoxOccluderRotationUndoStep(BoxOccluder, startRot);
+                    case WidgetMode.Scale: return new BoxOccluderScaleUndoStep(BoxOccluder, startScale);
+                }
+            }
+            else if (OccludeModelTri != null)
+            {
+                switch (mode)
+                {
+                    case WidgetMode.Position: return new OccludeModelTriPositionUndoStep(OccludeModelTri, startPos);
+                    case WidgetMode.Rotation: return new OccludeModelTriRotationUndoStep(OccludeModelTri, startRot);
+                    case WidgetMode.Scale: return new OccludeModelTriScaleUndoStep(OccludeModelTri, startScale);
+                }
+            }
             else if (PathNode != null)
             {
                 switch (mode)
@@ -498,6 +518,14 @@ namespace CodeWalker
                 {
                     res = true;
                 }
+                else if (BoxOccluder != null)
+                {
+                    res = true;
+                }
+                else if (OccludeModelTri != null)
+                {
+                    res = true;
+                }
                 else if (NavPoly != null)
                 {
                     res = true;
@@ -576,6 +604,14 @@ namespace CodeWalker
                 {
                     return LodLight.Position;
                 }
+                else if (BoxOccluder != null)
+                {
+                    return BoxOccluder.Position;
+                }
+                else if (OccludeModelTri != null)
+                {
+                    return OccludeModelTri.Center;
+                }
                 else if (NavPoly != null)
                 {
                     return NavPoly.Position;
@@ -642,6 +678,14 @@ namespace CodeWalker
                 {
                     return LodLight.Orientation;
                 }
+                else if (BoxOccluder != null)
+                {
+                    return BoxOccluder.Orientation;
+                }
+                else if (OccludeModelTri != null)
+                {
+                    return OccludeModelTri.Orientation;
+                }
                 else if (NavPoly != null)
                 {
                     return Quaternion.Identity;
@@ -705,6 +749,14 @@ namespace CodeWalker
                 {
                     return WidgetAxis.XYZ;
                 }
+                else if (BoxOccluder != null)
+                {
+                    return WidgetAxis.Z;
+                }
+                else if (OccludeModelTri != null)
+                {
+                    return WidgetAxis.XYZ;
+                }
                 else if (NavPoly != null)
                 {
                     return WidgetAxis.XYZ;
@@ -768,6 +820,14 @@ namespace CodeWalker
                 {
                     return LodLight.Scale;
                 }
+                else if (BoxOccluder != null)
+                {
+                    return BoxOccluder.Size;
+                }
+                else if (OccludeModelTri != null)
+                {
+                    return OccludeModelTri.Scale;
+                }
                 else if (NavPoly != null)
                 {
                     return Vector3.One;
@@ -811,6 +871,14 @@ namespace CodeWalker
                     }
                     return false;
                 }
+                if (BoxOccluder != null)
+                {
+                    return false;
+                }
+                if (OccludeModelTri != null)
+                {
+                    return false;
+                }
                 if (CollisionBounds != null)
                 {
                     return false;
@@ -841,6 +909,8 @@ namespace CodeWalker
                 else if (EntityDef != null) return true;
                 else if (CarGenerator != null) return true;
                 else if (LodLight != null) return true;
+                else if (BoxOccluder != null) return true;
+                else if (OccludeModelTri != null) return true;
                 else if (PathNode != null) return true;
                 else if (NavPoly != null) return true;
                 else if (NavPoint != null) return true;
@@ -962,6 +1032,14 @@ namespace CodeWalker
             {
                 LodLight.SetPosition(newpos);
             }
+            else if (BoxOccluder != null)
+            {
+                BoxOccluder.Position = newpos;
+            }
+            else if (OccludeModelTri != null)
+            {
+                OccludeModelTri.Center = newpos;
+            }
             else if (PathNode != null)
             {
                 PathNode.SetPosition(newpos);
@@ -1074,6 +1152,14 @@ namespace CodeWalker
             {
                 LodLight.SetOrientation(newrot);
             }
+            else if (BoxOccluder != null)
+            {
+                BoxOccluder.Orientation = newrot;
+            }
+            else if (OccludeModelTri != null)
+            {
+                OccludeModelTri.Orientation = newrot;
+            }
             else if (ScenarioNode != null)
             {
                 ScenarioNode.SetOrientation(newrot);
@@ -1165,6 +1251,14 @@ namespace CodeWalker
             {
                 LodLight.SetScale(newscale);
             }
+            else if (BoxOccluder != null)
+            {
+                BoxOccluder.SetSize(newscale);
+            }
+            else if (OccludeModelTri != null)
+            {
+                OccludeModelTri.Scale = newscale;
+            }
         }
 
 
@@ -1205,12 +1299,14 @@ namespace CodeWalker
         {
             if (MultipleSelectionItems != null)
             {
-                Dictionary<YndFile, int> pathYnds = new Dictionary<YndFile, int>();
+                var pathYnds = new Dictionary<YndFile, int>();
-                Dictionary<YnvFile, int> navYnvs = new Dictionary<YnvFile, int>();
+                var navYnvs = new Dictionary<YnvFile, int>();
-                Dictionary<TrainTrack, int> trainTracks = new Dictionary<TrainTrack, int>();
+                var trainTracks = new Dictionary<TrainTrack, int>();
-                Dictionary<YmtFile, int> scenarioYmts = new Dictionary<YmtFile, int>();
+                var scenarioYmts = new Dictionary<YmtFile, int>();
-                Dictionary<Bounds, int> bounds = new Dictionary<Bounds, int>();
+                var bounds = new Dictionary<Bounds, int>();
-                Dictionary<YmapLODLights, int> lodlights = new Dictionary<YmapLODLights, int>();
+                var lodlights = new Dictionary<YmapLODLights, int>();
+                var boxoccls = new Dictionary<YmapBoxOccluder, int>();
+                var occlmods = new Dictionary<YmapOccludeModel, int>();
 
                 foreach (var item in MultipleSelectionItems)
                 {
@@ -1254,6 +1350,14 @@ namespace CodeWalker
                     {
                         lodlights[item.LodLight.LodLights] = 1;
                     }
+                    if (item.BoxOccluder != null)
+                    {
+                        boxoccls[item.BoxOccluder] = 1;
+                    }
+                    if (item.OccludeModelTri?.Model != null)
+                    {
+                        occlmods[item.OccludeModelTri.Model] = 1;
+                    }
                 }
                 foreach (var kvp in bounds)
                 {
@@ -1282,6 +1386,14 @@ namespace CodeWalker
                         wf.UpdateLodLightGraphics(kvp.Key.LodLights[0]);
                     }
                 }
+                foreach (var kvp in boxoccls)
+                {
+                    wf.UpdateBoxOccluderGraphics(kvp.Key);
+                }
+                foreach (var kvp in occlmods)
+                {
+                    wf.UpdateOccludeModelGraphics(kvp.Key);
+                }
             }
             else
             {
@@ -1325,6 +1437,14 @@ namespace CodeWalker
                 {
                     wf.UpdateLodLightGraphics(LodLight);
                 }
+                else if (BoxOccluder != null)
+                {
+                    wf.UpdateBoxOccluderGraphics(BoxOccluder);
+                }
+                else if (OccludeModelTri?.Model != null)
+                {
+                    wf.UpdateOccludeModelGraphics(OccludeModelTri?.Model);
+                }
             }
         }
 
@@ -1338,6 +1458,8 @@ namespace CodeWalker
             else if (EntityDef != null) return EntityDef;
             else if (CarGenerator != null) return CarGenerator;
             else if (LodLight != null) return LodLight;
+            else if (BoxOccluder != null) return BoxOccluder;
+            else if (OccludeModelTri != null) return OccludeModelTri;
             else if (PathNode != null) return PathNode;
             else if (NavPoly != null) return NavPoly;
             else if (NavPoint != null) return NavPoint;
@@ -1382,6 +1504,16 @@ namespace CodeWalker
                 ms.LodLight = lodlight;
                 ms.AABB = new BoundingBox(new Vector3(-nrad), new Vector3(nrad));
             }
+            else if (o is YmapBoxOccluder boxoccl)
+            {
+                ms.BoxOccluder = boxoccl;
+                ms.AABB = new BoundingBox(boxoccl.BBMin, boxoccl.BBMax);
+            }
+            else if (o is YmapOccludeModelTriangle occltri)
+            {
+                ms.OccludeModelTri = occltri;
+                ms.AABB = new BoundingBox(occltri.Box.Minimum, occltri.Box.Maximum);
+            }
             else if (o is YmapGrassInstanceBatch batch)
             {
                 ms.GrassBatch = batch;

CodeWalker/World/WorldInfoForm.cs

@@ -117,10 +117,10 @@ namespace CodeWalker.World
                 SelectionEntityTabPage.Text = "Box Occluder";
                 SelEntityPropertyGrid.SelectedObject = item.BoxOccluder;
             }
-            else if (item.OccludeModel != null)
+            else if (item.OccludeModelTri != null)
             {
-                SelectionEntityTabPage.Text = "Occlude Model";
+                SelectionEntityTabPage.Text = "Occlude Model Triangle";
-                SelEntityPropertyGrid.SelectedObject = item.OccludeModel;
+                SelEntityPropertyGrid.SelectedObject = item.OccludeModelTri;
             }
             else if (item.WaterQuad != null)
             {

CodeWalker/WorldForm.cs

@@ -1225,9 +1225,11 @@ namespace CodeWalker
             {
                 ori = CurMouseHit.BoxOccluder.Orientation;
             }
-            if (CurMouseHit.OccludeModel != null)
+            if (CurMouseHit.OccludeModelTri != null)
             {
-                //ori = CurMouseHit.OccludeModel.Orientation;
+                var otri = CurMouseHit.OccludeModelTri;
+                Renderer.RenderSelectionTriangleOutline(otri.Corner1, otri.Corner2, otri.Corner3, 0xFFFFFFFF);
+                return;
             }
             if (CurMouseHit.MloEntityDef != null)
             {
@@ -1531,6 +1533,14 @@ namespace CodeWalker
                 bbmin = bo.BBMin;
                 bbmax = bo.BBMax;
             }
+            if (selectionItem.OccludeModelTri != null)
+            {
+                var ot = selectionItem.OccludeModelTri;
+                var om = ot.Model;
+                bbmin = om._OccludeModel.bmin;
+                bbmax = om._OccludeModel.bmax;
+                Renderer.RenderSelectionTriangleOutline(ot.Corner1, ot.Corner2, ot.Corner3, cgrn);
+            }
             if (selectionItem.NavPoly != null)
             {
                 Renderer.RenderSelectionNavPoly(selectionItem.NavPoly);
@@ -1961,6 +1971,23 @@ namespace CodeWalker
                 Renderer.Invalidate(lodlight);
             }
         }
+        public void UpdateBoxOccluderGraphics(YmapBoxOccluder box)
+        {
+            //lock (Renderer.RenderSyncRoot)
+            {
+                Renderer.Invalidate(box);
+            }
+        }
+        public void UpdateOccludeModelGraphics(YmapOccludeModel model)
+        {
+            model.BuildBVH();
+            model.BuildVertices();
+
+            //lock (Renderer.RenderSyncRoot)
+            {
+                Renderer.Invalidate(model);
+            }
+        }
         public void UpdateGrassBatchGraphics(YmapGrassInstanceBatch grassBatch)
         {
             //lock (Renderer.RenderSyncRoot)
@@ -2815,13 +2842,15 @@ namespace CodeWalker
                     var bo = ymap.BoxOccluders[i];
                     if ((bo.Position - camera.Position).Length() > dmax) continue;
 
+                    Renderer.RenderBasePath(bo);
+
                     MapBox mb = new MapBox();
                     mb.CamRelPos = bo.Position - camera.Position;
                     mb.BBMin = bo.BBMin;
                     mb.BBMax = bo.BBMax;
                     mb.Orientation = bo.Orientation;
                     mb.Scale = Vector3.One;
-                    Renderer.BoundingBoxes.Add(mb);
+                    //Renderer.BoundingBoxes.Add(mb);
 
                     Quaternion orinv = Quaternion.Invert(bo.Orientation);
                     Ray mraytrn = new Ray();
@@ -2829,10 +2858,11 @@ namespace CodeWalker
                     mraytrn.Direction = orinv.Multiply(mray.Direction);
                     bbox.Minimum = mb.BBMin;
                     bbox.Maximum = mb.BBMax;
-                    if (mraytrn.Intersects(ref bbox, out hitdist) && (hitdist < CurMouseHit.HitDist) && (hitdist > 0))
+                    if (mraytrn.Intersects(ref bbox, out float hd) && (hd < CurMouseHit.HitDist) && (hd > 0))
                     {
+                        hitdist = hd;
                         CurMouseHit.BoxOccluder = bo;
-                        CurMouseHit.OccludeModel = null;
+                        CurMouseHit.OccludeModelTri = null;
                         CurMouseHit.HitDist = hitdist;
                         CurMouseHit.CamRel = mb.CamRelPos;
                         CurMouseHit.AABB = bbox;
@@ -2847,24 +2877,14 @@ namespace CodeWalker
 
                     Renderer.RenderBasePath(om);
 
-                    MapBox mb = new MapBox();
+                    var hittri = om.RayIntersect(ref mray, ref hitdist);
-                    mb.CamRelPos = -camera.Position;
+                    if ((hittri != null) && (hitdist < CurMouseHit.HitDist))
-                    mb.BBMin = om._OccludeModel.bmin;
-                    mb.BBMax = om._OccludeModel.bmax;
-                    mb.Orientation = Quaternion.Identity;// bo.Orientation;
-                    mb.Scale = Vector3.One;
-                    Renderer.BoundingBoxes.Add(mb);
-
-
-                    bbox.Minimum = mb.BBMin;
-                    bbox.Maximum = mb.BBMax;
-                    if (mray.Intersects(ref bbox, out hitdist) && (hitdist < CurMouseHit.HitDist) && (hitdist > 0))
                     {
                         CurMouseHit.BoxOccluder = null;
-                        CurMouseHit.OccludeModel = om;
+                        CurMouseHit.OccludeModelTri = hittri;
                         CurMouseHit.HitDist = hitdist;
-                        CurMouseHit.CamRel = mb.CamRelPos;
+                        CurMouseHit.CamRel = -camera.Position;
-                        CurMouseHit.AABB = bbox;
+                        CurMouseHit.AABB = hittri.Box;
                     }
 
                 }
@@ -3672,13 +3692,21 @@ namespace CodeWalker
             }
             else if (item.BoxOccluder != null)
             {
-                SelectionEntityTabPage.Text = "Box Occluder";
+                SelectionEntityTabPage.Text = "BoxOccluder";
                 SelEntityPropertyGrid.SelectedObject = item.BoxOccluder;
+                ymap = item.BoxOccluder.Ymap;
+                ToolbarCopyButton.Enabled = true;
+                ToolbarDeleteItemButton.Enabled = true;
+                ToolbarDeleteItemButton.Text = "Delete Box Occluder";
             }
-            else if (item.OccludeModel != null)
+            else if (item.OccludeModelTri != null)
             {
-                SelectionEntityTabPage.Text = "Occlude Model";
+                SelectionEntityTabPage.Text = "OccludeTriangle";
-                SelEntityPropertyGrid.SelectedObject = item.OccludeModel;
+                SelEntityPropertyGrid.SelectedObject = item.OccludeModelTri;
+                ymap = item.OccludeModelTri.Ymap;
+                ToolbarCopyButton.Enabled = true;
+                ToolbarDeleteItemButton.Enabled = true;
+                ToolbarDeleteItemButton.Text = "Delete Occlude Model Triangle";
             }
             else if (item.WaterQuad != null)
             {
@@ -5058,6 +5086,9 @@ namespace CodeWalker
             else if (item.CollisionBounds != null) DeleteCollisionBounds(item.CollisionBounds);
             else if (item.EntityDef != null) DeleteEntity(item.EntityDef);
             else if (item.CarGenerator != null) DeleteCarGen(item.CarGenerator);
+            else if (item.LodLight != null) DeleteLodLight(item.LodLight);
+            else if (item.BoxOccluder != null) DeleteBoxOccluder(item.BoxOccluder);
+            else if (item.OccludeModelTri != null) DeleteOccludeModelTriangle(item.OccludeModelTri);
             else if (item.PathNode != null) DeletePathNode(item.PathNode);
             else if (item.NavPoly != null) DeleteNavPoly(item.NavPoly);
             else if (item.NavPoint != null) DeleteNavPoint(item.NavPoint);
@@ -5115,6 +5146,52 @@ namespace CodeWalker
                 SelectItem(null);
             }
         }
+        private void DeleteLodLight(YmapLODLight lodlight)
+        {
+            if (lodlight == null) return;
+
+            //project not open, or lodlight not selected there, just remove the lodlight from the ymap...
+            var ymap = lodlight.Ymap;
+            if (!ymap.RemoveLodLight(lodlight))
+            {
+                MessageBox.Show("Unable to remove LOD light.");
+            }
+            else
+            {
+                SelectItem(null);
+            }
+        }
+        private void DeleteBoxOccluder(YmapBoxOccluder box)
+        {
+            if (box == null) return;
+
+            //project not open, or box not selected there, just remove the box from the ymap...
+            var ymap = box.Ymap;
+            if (!ymap.RemoveBoxOccluder(box))
+            {
+                MessageBox.Show("Unable to remove box occluder.");
+            }
+            else
+            {
+                SelectItem(null);
+            }
+        }
+        private void DeleteOccludeModelTriangle(YmapOccludeModelTriangle tri)
+        {
+            if (tri == null) return;
+
+            //project not open, or tri not selected there, just remove the tri from the ymap...
+            var ymap = tri.Ymap;
+            if (!ymap.RemoveOccludeModelTriangle(tri))
+            {
+                MessageBox.Show("Unable to remove occlude model triangle.");
+            }
+            else
+            {
+                UpdateOccludeModelGraphics(tri.Model);
+                SelectItem(null);
+            }
+        }
         private void DeletePathNode(YndNode pathnode)
         {
             if (pathnode == null) return;