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Merge pull request #204 from coltfox/bvh-extents-calc

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Correctly calculate BVH item extents
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dexyfex 2023-08-21 14:36:25 +10:00 committed by GitHub
commit 378e66ef3b
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2 changed files with 7 additions and 11 deletions
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13
CodeWalker.Core/GameFiles/Resources/Bounds.cs
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@ -2880,7 +2880,7 @@ namespace CodeWalker.GameFiles
if (child != null) if (child != null)
{ {
var cbox = new BoundingBox(child.BoxMin, child.BoxMax); var cbox = new BoundingBox(child.BoxMin, child.BoxMax);
var tcbox = cbox.Transform(child.Position, child.Orientation, child.Scale); var tcbox = cbox.Transform(child.Transform);
var it = new BVHBuilderItem(); var it = new BVHBuilderItem();
it.Min = tcbox.Minimum; it.Min = tcbox.Minimum;
it.Max = tcbox.Maximum; it.Max = tcbox.Maximum;
@ -2894,16 +2894,7 @@ namespace CodeWalker.GameFiles
} }
} }
var bvh = BVHBuilder.Build(items, 1); //composites have BVH item threshold of 1 BVH = BVHBuilder.Build(items, 1); //composites have BVH item threshold of 1
BoxMin = bvh.BoundingBoxMin.XYZ();
BoxMax = bvh.BoundingBoxMax.XYZ();
BoxCenter = bvh.BoundingBoxCenter.XYZ();
SphereCenter = BoxCenter;
SphereRadius = (BoxMax - BoxCenter).Length();
BVH = bvh;
} }
public void UpdateChildrenFlags() public void UpdateChildrenFlags()

5
CodeWalker.Core/Utils/Vectors.cs
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@ -127,6 +127,11 @@ namespace CodeWalker
public static BoundingBox Transform(this BoundingBox b, Vector3 position, Quaternion orientation, Vector3 scale) public static BoundingBox Transform(this BoundingBox b, Vector3 position, Quaternion orientation, Vector3 scale)
{ {
var mat = Matrix.Transformation(Vector3.Zero, Quaternion.Identity, scale, Vector3.Zero, orientation, position); var mat = Matrix.Transformation(Vector3.Zero, Quaternion.Identity, scale, Vector3.Zero, orientation, position);
return b.Transform(mat);
}
public static BoundingBox Transform(this BoundingBox b, Matrix mat)
{
var matabs = mat; var matabs = mat;
matabs.Column1 = mat.Column1.Abs(); matabs.Column1 = mat.Column1.Abs();
matabs.Column2 = mat.Column2.Abs(); matabs.Column2 = mat.Column2.Abs();