This function will strip all triangle in the specified LOD that don't have any UV area pointing on a black pixel in the TextureMask. We use the UVChannel 0 to find the pixels in the texture.
Target is Editor Skeletal Mesh Library
Select Asset
0
Select Asset
0.0
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In
Exec
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Skeletal Mesh
Skeletal Mesh Object Reference
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LODIndex
Integer
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Texture Mask
Texture 2D Object Reference
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Threshold
Float
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Out
Exec
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Return Value
Boolean
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