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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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12
Source/Engine/Tools/ModelTool/ModelTool.OpenFBX.cpp
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@@ -786,11 +786,13 @@ bool ProcessMesh(ModelData& result, OpenFbxImporterData& data, const ofbx::Mesh*
auto shapeNormals = shape->getNormals();
for (int32 i = 0; i < blendShapeData.Vertices.Count(); i++)
{
/*auto delta = ToFloat3(shapeNormals[i + firstVertexOffset]) - mesh.Normals[i];
auto length = delta.Length();
if (length > ZeroTolerance)
delta /= length;*/
auto delta = Float3::Zero; // TODO: blend shape normals deltas fix when importing from fbx
auto delta = ToFloat3(shapeNormals[i + firstVertexOffset]);
if (data.ConvertRH)
{
// Mirror normals along the Z axis
delta.Z *= -1.0f;
}
delta = delta - mesh.Normals.Get()[i];
blendShapeData.Vertices.Get()[i].NormalDelta = delta;
}
}