static void CopyPristineAccelerationStructures ( const [TMap](API\Runtime\Core\Containers\TMap)< [FSpatialAccelerationIdx](API\Runtime\Chaos\Chaos\FSpatialAccelerationIdx), [TUniquePtr](API\Runtime\Core\Templates\TUniquePtr)< [FSpatialAccelerationCache](API\Runtime\Chaos\Chaos\FSpatialAccelerationCache) >> & SpatialAccelerationCache, [FAccelerationStructure](API\Runtime\Chaos\Chaos\FPBDRigidsEvolutionBase\FAccelerationStructure) * FromStructure, [FAccelerationStructure](API\Runtime\Chaos\Chaos\FPBDRigidsEvolutionBase\FAccelerationStructure) * ToStructure, bool CheckPristine )