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API > API/Runtime > API/Runtime/Chaos > API/Runtime/Chaos/FGeometryCollection
Description
Builds mesh sections for a given index buffer that could be a subset. Currently, this call assumes that the indices are ordered by MaterialID #todo(dmp): Refactor this and ReindexMaterials to share code
| Name | BuildMeshSections |
| Type | function |
| Header File | /Engine/Source/Runtime/Experimental/Chaos/Public/GeometryCollection/GeometryCollection.h |
| Include Path | #include "GeometryCollection/GeometryCollection.h" |
| Source | /Engine/Source/Runtime/Experimental/Chaos/Private/GeometryCollection/GeometryCollection.cpp |
TArray < FGeometryCollectionSection > BuildMeshSections
(
const TArray < FIntVector > & Indices,
const TArray < int32 > & BaseMeshOriginalIndicesIndex,
TArray < FIntVector > & RetIndices
) const