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API > API/Runtime > API/Runtime/GeometryCore > API/Runtime/GeometryCore/Selections > API/Runtime/GeometryCore/Selections/FMeshFaceSelection > API/Runtime/GeometryCore/Selections/FMeshFaceSelection/ExpandToOneRingNeighbours
References
| Module | GeometryCore |
| Header | /Engine/Source/Runtime/GeometryCore/Public/Selections/MeshFaceSelection.h |
| Include | #include "Selections/MeshFaceSelection.h" |
| Source | /Engine/Source/Runtime/GeometryCore/Private/Selections/MeshFaceSelection.cpp |
void ExpandToOneRingNeighbours
&40;
const TUniqueFunction< bool(int)> & FilterF
&41;
Remarks
Add all triangles in vertex one-rings of current selection to set. On a large mesh this is quite expensive as we don't know the boundary, so we have to iterate over all triangles.
Return false from FilterF to prevent triangles from being included.