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API > API/Runtime > API/Runtime/GeometryCollectionEngine > API/Runtime/GeometryCollectionEngine/GeometryCollection > API/Runtime/GeometryCollectionEngine/GeometryCollection/FGeometryCollectionISM
References
| Module | GeometryCollectionEngine |
| Header | /Engine/Source/Runtime/Experimental/GeometryCollectionEngine/Public/GeometryCollection/GeometryCollectionISMPoolComponent.h |
| Include | #include "GeometryCollection/GeometryCollectionISMPoolComponent.h" |
| Source | /Engine/Source/Runtime/Experimental/GeometryCollectionEngine/Private/GeometryCollection/GeometryCollectionISMPoolComponent.cpp |
FInstanceGroups::FInstanceGroupId AddInstanceGroup
&40;
int32 InstanceCount,
TArrayView< const float > CustomDataFloats
&41;
Remarks
Add a group to the ISM. Returns the group index.