mesh_check.py 文件源码

def display_color_callback():    
    if bpy.context.object.mode == 'EDIT':         
        if display_color[0]:              
            ob = bpy.context.object
            me = ob.data
            bm = bmesh.from_edit_mesh(me)

            quads = tris = ngons = 0
            ngons_to_tris = 0            
            verts = len(bm.verts)
            faces = len(bm.faces)

            for f in bm.faces:                
                v = len(f.verts)
                if v == 3: # tris
                    f.material_index = 2
                elif v == 4: # quads
                    f.material_index = 0    
                elif v > 4: # ngons 
                    f.material_index = 1

            bmesh.update_edit_mesh(me)