Polygon Material Painter – Sub-Mesh Editor v1.5.2 (08 Sep 2025)

This asset is also part of the Mesh Tools Bundle 2 and 1. Create new sub meshes inside Unity for any model. Assign your materials with ease.

• Super easy to use: Draw on the mesh and then pick a material. Done.
• None-Destructive workflow: Automatically generates a new mesh asset (.asset file). Your original asset remains the same.
• Skinned Mesh Support: Keeps all your bone weights and animations intact. Please notice that the .obj file format does not support bones or animation. Thus that information can not be exported as obj.
• Brush for high-poly meshes: Though you should keep it under a hundred thousand triangles for best performance.

Undo/Redo for selections OBJ Export. In case you need to pass your new mesh around.