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Fix animated model skinning precision issues

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#2460
This commit is contained in:
Wojtek Figat
2024-04-22 13:18:52 +02:00
parent 1072b90c5b
commit 568a69081d
5 changed files with 24 additions and 26 deletions
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8
Source/Engine/Tools/ModelTool/ModelTool.OpenFBX.cpp
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@@ -720,23 +720,23 @@ bool ProcessMesh(ModelData& result, OpenFbxImporterData& data, const ofbx::Mesh*
{
int vtxIndex = clusterIndices[j] - firstVertexOffset;
float vtxWeight = (float)clusterWeights[j];
if (vtxWeight <= 0 || vtxIndex < 0 || vtxIndex >= vertexCount)
continue;
auto& indices = mesh.BlendIndices[vtxIndex];
auto& weights = mesh.BlendWeights[vtxIndex];
Int4& indices = mesh.BlendIndices.Get()[vtxIndex];
Float4& weights = mesh.BlendWeights.Get()[vtxIndex];
for (int32 k = 0; k < 4; k++)
{
if (vtxWeight >= weights.Raw[k])
{
// Move lower weights by one down
for (int32 l = 2; l >= k; l--)
{
indices.Raw[l + 1] = indices.Raw[l];
weights.Raw[l + 1] = weights.Raw[l];
}
// Set bone influence
indices.Raw[k] = boneIndex;
weights.Raw[k] = vtxWeight;
break;