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Unreal Engine C++ API Reference > Runtime > DatasmithCore > FDatasmithMesh
References
| Module | DatasmithCore |
| Header | /Engine/Source/Runtime/Datasmith/DatasmithCore/Public/DatasmithMesh.h |
| Include | #include "DatasmithMesh.h" |
| Source | /Engine/Source/Runtime/Datasmith/DatasmithCore/Private/DatasmithMesh.cpp |
void SetLightmapSourceUVChannel
&40;
int32 Channel
&41;
Remarks
Sets the UV channel that will be used as the source UVs for lightmap UVs generation at import, defaults to channel 0. Will be overwritten during Mesh export if we choose to generate the lightmap source UVs.