static [UDynamicMesh](API\Runtime\GeometryFramework\UDynamicMesh) * SetMeshTriangleNormals ( [UDynamicMesh](API\Runtime\GeometryFramework\UDynamicMesh) * TargetMesh, int TriangleID, [FGeometryScriptTriangle](API\Plugins\GeometryScriptingCore\GeometryScript\FGeometryScriptTriangle) Normals, bool & bIsValidTriangle, bool bDeferChangeNotifications )