How to create an inset on a cube using the Blender API

Question

I'm attempting to inset the top face of a cube using the Blender API using the code below. If anyone could help me understand why I am not seeing any inset within edit mode after running my script that would be much appreciated. The cube is successfully created, but no inset is visible.

Thanks in advance :)

bpy.ops.mesh.primitive_cube_add(size=1)
cube = bpy.context.object
bpy.context.view_layer.objects.active = cube
bpy.ops.object.mode_set(mode='EDIT')
bpy.ops.mesh.select_mode(type='FACE')
bpy.ops.mesh.select_all(action='DESELECT')
cube.data.polygons[4].select = True
bpy.ops.mesh.inset(thickness=0.2)
cube.data.update()
bpy.ops.object.mode_set(mode='OBJECT')
```

Operators in bpy.ops are for interactive use through the UI and should be avoided in scripts because they depend on context. Using them through scripts may yield unexpected results at best, or fail entirely at worst. Manipulate data directly from bpy.data instead. — Duarte Farrajota Ramos, Dec 19 '23 at 02:08

score 0 · Answer 1 · answered Dec 19 '23 at 06:53

try this:

create a cube, select it, then run the code.

In Edit mode you see the result of the picture.

Beware: this insets all faces, i hope you can adapt the code that it only insets one face, if not, let me know.

import bpy
import bmesh
me = bpy.context.object.data
bm = bmesh.new()
bm.from_mesh(me)
faces = bm.faces[:]
insetFaces=bmesh.ops.inset_individual(bm, faces=faces,thickness=.10, depth=.0)
bm.to_mesh(me)
bm.free()

How to create an inset on a cube using the Blender API

1 Answers1