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API > API/Runtime > API/Runtime/Chaos > API/Runtime/Chaos/FGeometryCollectionPhysicsProxy
Description
Build a physics thread cluster parent particle. CollectionClusterIndex_ - the source geometry collection transform index. ChildHandles_ - physics particle handles of the cluster children. `ChildTransformGroupIndices_ - geometry collection indices of the children. \P Parameters - uh, yeah... Other parameters.
| Name | BuildClusters_Internal |
| Type | function |
| Header File | /Engine/Source/Runtime/Experimental/Chaos/Public/PhysicsProxy/GeometryCollectionPhysicsProxy.h |
| Include Path | #include "PhysicsProxy/GeometryCollectionPhysicsProxy.h" |
| Source | /Engine/Source/Runtime/Experimental/Chaos/Private/PhysicsProxy/GeometryCollectionPhysicsProxy.cpp |
Chaos::FPBDRigidClusteredParticleHandle * BuildClusters_Internal
(
const uint32 CollectionClusterIndex,
TArray < Chaos::FPBDRigidParticleHandle * > & ChildHandles,
const TArray < int32 > & ChildTransformGroupIndices,
const Chaos::FClusterCreationParameters & Parameters,
const Chaos::FUniqueIdx * ExistingIndex
)