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Merge branch '4.0' into 4.1

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This commit is contained in:
badlogic 2022-07-04 14:01:12 +02:00
commit 91a26443a9
1 changed files with 32 additions and 8 deletions
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38
spine-ue4/Plugins/SpinePlugin/Source/SpinePlugin/Private/SpineSkeletonRendererComponent.cpp
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@ -348,15 +348,39 @@ void USpineSkeletonRendererComponent::UpdateMesh(Skeleton *Skeleton) {
indices.Add(idx + attachmentIndices[j]);
}
FVector normal = FVector(0, -1, 0);
if (numVertices > 2 &&
FVector::CrossProduct(
vertices[indices[firstIndex + 2]] - vertices[indices[firstIndex]],
vertices[indices[firstIndex + 1]] - vertices[indices[firstIndex]])
.Y > 0.f) {
normal.Y = 1;
//Calculate total triangle to add on this loof.
int TriangleInitialCount = firstIndex / 3;
int TriangleToAddNum = indices.Num() / 3 - TriangleInitialCount;
int FirstVertexIndex = vertices.Num() - numVertices;
//loof through all the triangles and resolve to be reversed if the triangle has winding order as CCW.
for (int j = 0; j < TriangleToAddNum; j++) {
const int TargetTringleIndex = firstIndex + j * 3;
if (FVector::CrossProduct(
vertices[indices[TargetTringleIndex + 2]] - vertices[indices[TargetTringleIndex]],
vertices[indices[TargetTringleIndex + 1]] - vertices[indices[TargetTringleIndex]])
.Y < 0.f) {
const int32 targetVertex = indices[TargetTringleIndex];
indices[TargetTringleIndex] = indices[TargetTringleIndex + 2];
indices[TargetTringleIndex + 2] = targetVertex;
}
}
FVector normal = FVector(0, 1, 0);
//Add normals for vertices.
for (int j = 0; j < numVertices; j++) {
normals.Add(normal);
}