Section 2.2.4 rdInstBase- Instancing – Visibility
// [rdInst v1.35] Shows or Hides the Instance
void rdSetInstanceVisibility(UStaticMesh* mesh,int32 index,bool vis);
// [rdInst v1.35] Shows or Hides the Instance (with ISMC reference)
void rdSetInstanceVisibilityFast(UInstancedStaticMeshComponent* ismc,int32 index,bool vis);
// [rdInst v1.35] Shows or Hides the Array of Instances
void rdSetInstancesVisibility(UStaticMesh* mesh,const TArray<int32>& indexes,bool vis);
// [rdInst v1.35] Shows or Hides the Array of Instances (with ISMC reference)
void rdSetInstancesVisibilityFast(UInstancedStaticMeshComponent* ismc,const TArray<int32>& indexes,bool vis);