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Fix blend shapes normals usage

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#2459
This commit is contained in:
Wojtek Figat
2024-04-20 16:52:07 +02:00
parent 6aacea99ab
commit 1072b90c5b
3 changed files with 21 additions and 10 deletions
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17
Source/Engine/Graphics/Models/ModelData.cpp
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@@ -515,12 +515,21 @@ void MeshData::TransformBuffer(const Matrix& matrix)
for (int32 i = 0; i < blendShape.Vertices.Count(); i++)
{
auto& v = vv[i];
Float3 p = Positions[v.VertexIndex], vp;
Float3::Transform(p + v.PositionDelta, matrix, vp);
Float3 p = Positions[v.VertexIndex];
Float3 vp = p + v.PositionDelta;
Float3::Transform(vp, matrix, vp);
Float3::Transform(p, matrix, p);
v.PositionDelta = vp - p;
Float3::TransformNormal(v.NormalDelta, inverseTransposeMatrix, v.NormalDelta);
v.NormalDelta.Normalize();
Float3 n = Normals[v.VertexIndex];
Float3 vn = n + v.NormalDelta;
vn.Normalize();
Float3::TransformNormal(vn, inverseTransposeMatrix, vn);
vn.Normalize();
Float3::TransformNormal(n, inverseTransposeMatrix, n);
n.Normalize();
v.NormalDelta = vn - n;
}
}