# Simplifier Specifies how to simplify when creating HLODMesh. Currently, there are two methods available: None and UnityMeshSimplifier. ## None ![](.//media/image11.png) We do not simplify when creating HLODMesh. ## UnityMeshSimplifier ![](.//media/image18.png) We simplify using [UnityMeshSimplifier](https://github.com/Unity-Technologies/UnityMeshSimplifier). **Polygon Ratio**: Sets the rate at which the polygon is reduced. **Triangle Range**: Sets the maximum/minimum number of polygons after simplification.