static [UDynamicMesh](API\Runtime\GeometryFramework\UDynamicMesh) * GetAllTriangleIDs ( [UDynamicMesh](API\Runtime\GeometryFramework\UDynamicMesh) * TargetMesh, [FGeometryScriptIndexList](API\Plugins\GeometryScriptingCore\GeometryScript\FGeometryScriptIndexList) & TriangleIDList, bool & bHasTriangleIDGaps )