#  Triangulate Faces The __Triangulate Faces__ action reduces selected faces to their base triangles. This creates a faceted, non-smooth appearance. > **Tip**: You can also launch this action from the ProBuilder menu (**Tools** > **ProBuilder** > **Geometry** > **Triangulate**).  > **Tip:** When you triangulate faces, you can smooth the hard edges with the [Smooth Group Editor window](smoothing-groups.md).