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Trying to generate hash for LOD lights

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This commit is contained in:
dexy 2019-01-26 21:00:13 +11:00
parent 7d72c9be3a
commit 3e2dd89702
2 changed files with 171 additions and 7 deletions
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5
CodeWalker.Core/Utils/Vectors.cs
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@ -25,6 +25,11 @@ namespace CodeWalker
return new Vector4((float)Math.Floor(v.X), (float)Math.Floor(v.Y), (float)Math.Floor(v.Z), (float)Math.Floor(v.W));
}
public static Vector4 Abs(this Vector4 v)
{
return new Vector4(Math.Abs(v.X), Math.Abs(v.Y), Math.Abs(v.Z), Math.Abs(v.W));
}
public static Quaternion ToQuaternion(this Vector4 v)
{
return new Quaternion(v);

173
Project/Panels/GenerateLODLightsPanel.cs
View File

@ -98,7 +98,7 @@ namespace CodeWalker.Project.Panels
var eemax = new Vector3(float.MinValue);
var semin = new Vector3(float.MaxValue);
var semax = new Vector3(float.MinValue);
var rnd = new Random();
//var rnd = new Random();
foreach (var ymap in projectYmaps)
{
@ -137,8 +137,9 @@ namespace CodeWalker.Project.Panels
semax = Vector3.Max(semax, ent.BBMax + ent._CEntityDef.lodDist);
foreach (var la in lightAttrs)
for (int li = 0; li<lightAttrs.Length;li++)
{
var la = lightAttrs[li];
//transform this light with the entity position and orientation
//generate lights data from it!
@ -207,12 +208,22 @@ namespace CodeWalker.Project.Panels
uint i = (byte)Math.Min(la.Intensity*4, 255);
uint c = (i << 24) + (r << 16) + (g << 8) + b;
uint h = (uint)rnd.NextLong(); //TODO: what hash to use???
uint h = GetLightHash(ent, li);// (uint)rnd.NextLong();
if (ent._CEntityDef.guid == 91259075)
{ } //h = 2324437992? should be:19112537
if (ent._CEntityDef.guid == 889043351)
{ } //h = 422028630 ? should be:4267224866
//any other way to know if it's a streetlight?
var name = ent.Archetype.Name;
bool isStreetLight = (name != null) && (name.Contains("street") || name.Contains("traffic"));
//isStreetLight = rnd.Next() > 2000000000;//DEBUG
//var name = ent.Archetype.Name;
var flags = la.Flags;
bool isStreetLight = (((flags >> 10) & 1u) == 1);// (name != null) && (name.Contains("street") || name.Contains("traffic"));
isStreetLight = false; //TODO: fix this!
//@Calcium:
//1 = point
@ -220,7 +231,7 @@ namespace CodeWalker.Project.Panels
//4 = capsule
uint type = la.Type;
uint unk = isStreetLight ? 1u : 0;//2 bits - isStreetLight low bit, unk high bit
uint t = la.TimeFlags + (type << 26) + (unk << 24);
uint t = la.TimeFlags | (type << 26) | (unk << 24);
var maxext = (byte)Math.Max(Math.Max(la.ExtentX, la.ExtentY), la.ExtentZ);
@ -364,6 +375,154 @@ namespace CodeWalker.Project.Panels
private uint GetLightHash(YmapEntityDef ent, int lightIndex)
{
unchecked
{
//var aabb1 = GetAABB(ent);
var aabb = GetAABB2(ent);
var hashData = new int[7];
hashData[0] = (int)(aabb.Min.X * 10.0f);
hashData[1] = (int)(aabb.Min.Y * 10.0f);
hashData[2] = (int)(aabb.Min.Z * 10.0f);
hashData[3] = (int)(aabb.Max.X * 10.0f);
hashData[4] = (int)(aabb.Max.Y * 10.0f);
hashData[5] = (int)(aabb.Max.Z * 10.0f);
hashData[6] = lightIndex;
int v3 = 7;
int v4 = 0;//=hashData index
int v5 = (int)0xDEADBEEF + 28;// -559038709;
int v6 = (int)0xDEADBEEF + 28;
int v7 = (int)0xDEADBEEF + 28;
uint v8 = 2;
do
{
int v9 = hashData[v4 + 2] + v5;
int v10 = hashData[v4 + 1] + v6;
int v11 = hashData[v4 + 0] - v9;
int v13 = v10 + v9;
int v14 = (v7 + v11) ^ RotateLeft(v9, 4);
int v17 = v13 + v14;
int v18 = (v10 - v14) ^ RotateLeft(v14, 6);
int v21 = v17 + v18;
int v22 = (v13 - v18) ^ RotateLeft(v18, 8);
int v25 = v21 + v22;
int v26 = (v17 - v22) ^ RotateLeft(v22, 16);
int v29 = (v21 - v26) ^ RotateRight(v26, 13);
int v30 = v25 - v29;
v7 = v25 + v26;
v6 = v7 + v29;
v5 = v30 ^ RotateLeft(v29, 4);
v4 += 3;
v3 -= 3;
--v8;
}
while (v8 > 0);
int v32 = v3 - 1; //should always be 0
if (v32 != 0)
{ }
int v50 = v7 + hashData[v4];
int v34 = (v6 ^ v5) - RotateLeft(v6, 14);
int v35 = (v34 ^ v50) - RotateLeft(v34, 11);
int v36 = (v35 ^ v6) - RotateRight(v35, 7);
int v37 = (v36 ^ v34) - RotateLeft(v36, 16);
int v51 = (v35 ^ v37) - RotateLeft(v37, 4);
int v38 = (v51 ^ v36) - RotateLeft(v51, 14);
int v53 = (v38 ^ v37) - RotateRight(v38, 8);
return (uint)v53;
}
}
private AABB_s GetAABB(YmapEntityDef ent)
{
var arch = ent.Archetype;
var ori = ent.Orientation;
Vector3 bbmin = ent.Position - ent.BSRadius; //sphere
Vector3 bbmax = ent.Position + ent.BSRadius;
if (arch != null)
{
Vector3[] c = new Vector3[8];
Vector3 abmin = arch.BBMin * ent.Scale; //entity box
Vector3 abmax = arch.BBMax * ent.Scale;
c[0] = abmin;
c[1] = new Vector3(abmin.X, abmin.Y, abmax.Z);
c[2] = new Vector3(abmin.X, abmax.Y, abmin.Z);
c[3] = new Vector3(abmin.X, abmax.Y, abmax.Z);
c[4] = new Vector3(abmax.X, abmin.Y, abmin.Z);
c[5] = new Vector3(abmax.X, abmin.Y, abmax.Z);
c[6] = new Vector3(abmax.X, abmax.Y, abmin.Z);
c[7] = abmax;
bbmin = new Vector3(float.MaxValue);
bbmax = new Vector3(float.MinValue);
for (int j = 0; j < 8; j++)
{
Vector3 corn = ori.Multiply(c[j]) + ent.Position;
bbmin = Vector3.Min(bbmin, corn);
bbmax = Vector3.Max(bbmax, corn);
}
}
AABB_s b = new AABB_s();
b.Min = new Vector4(bbmin, 0f);
b.Max = new Vector4(bbmax, 0f);
return b;
}
private AABB_s GetAABB2(YmapEntityDef ent)
{
var arch = ent.Archetype;
var ori = ent.Orientation;
var pos = ent.Position;
var sca = ent.Scale;
var mat = Matrix.Transformation(Vector3.Zero, Quaternion.Identity, sca, Vector3.Zero, ori, pos);
var matabs = mat;
matabs.Column1 = mat.Column1.Abs();
matabs.Column2 = mat.Column2.Abs();
matabs.Column3 = mat.Column3.Abs();
matabs.Column4 = mat.Column4.Abs();
Vector3 bbmin = pos - ent.BSRadius; //sphere
Vector3 bbmax = pos + ent.BSRadius;
if (arch != null)
{
var bbcenter = (arch.BBMax + arch.BBMin) * 0.5f;
var bbextent = (arch.BBMax - arch.BBMin) * 0.5f;
var ncenter = Vector3.TransformCoordinate(bbcenter, mat);
var nextent = Vector3.TransformNormal(bbextent, matabs);
bbmin = ncenter - nextent;
bbmax = ncenter + nextent;
}
AABB_s b = new AABB_s();
b.Min = new Vector4(bbmin, 0f);
b.Max = new Vector4(bbmax, 0f);
return b;
}
private static uint RotateLeft(uint value, int count)
{
return (value << count) | (value >> (32 - count));
}
private static uint RotateRight(uint value, int count)
{
return (value >> count) | (value << (32 - count));
}
private static int RotateLeft(int value, int count)
{
return (int)RotateLeft((uint)value, count);
}
private static int RotateRight(int value, int count)
{
return (int)RotateRight((uint)value, count);
}
public class Light
{
public MetaVECTOR3 position { get; set; }