How do I mass-remove UV maps from multiple objects?

Question

I accidentally added 2 UV maps to an object, and the wrong one is selected to be used in the render. The problem is, I have over 100 non-linked duplicated of this object in my scene. How do I remove a UV map from all of them (quickly)?

While you're waiting for a proper answer, one possible workaround would be to just explicit set the map you want in the shader and just ignore the other map: https://blender.stackexchange.com/questions/2176/can-cycles-use-multiple-uv-layers — JtheNinja, Apr 03 '18 at 06:44

score 6 · Answer 1 · answered Apr 29 '19 at 21:04

I'm using Blender 2.8 beta, and this is the modified version of the script I'm using to delete all the unwanted UV Map Layers from all the selected objects at once:

import bpy
selected = bpy.context.selected_objects

bad_uvmap = 'UVChannel_2' # Enter the UV map name you want to remove here
print("Deleting unwanted UV Layers")
 for obj in selected:
   if obj.type == "MESH":
     bad_uvlayer = obj.data.uv_layers.get(bad_uvmap)
     if bad_uvlayer != None:
       obj.data.uv_layers.remove(bad_uvlayer)

Hope this helps!

score 5 · Answer 2 · answered Apr 03 '18 at 08:00

You can use the following script:

import bpy

selected = bpy.context.selected_objects

bad_uvmap = 'UVMap.001' # Enter the UV map name you want to remove here

for obj in selected:
    try:
        badUV = obj.data.uv_textures[ bad_uvmap ]
        obj.data.uv_textures.remove( badUV )
    except:
        pass

Paste it in the text editor (open a text editor view, use the "new" button and paste).
Change the line "bad_uvmap = 'UVMap.001'" by replacing 'UVMap.001' by the name of the UV map you want to remove
Select all the concerned objects in the 3D view
Come back to the text editor and use 'run script' or AltP

For 2.8 replace uv_textures with uv_layers – batFINGER Jan 19 '20 at 15:33 — batFINGER, Jan 19 '20 at 15:33

score 2 · Accepted Answer · answered Apr 03 '18 at 05:53

2

you may have to join the objects together and simply go into the image texture editor and remove them both with the little negative sign on the right to remove the custom textures in the slot of the object. if you still don't get it please say or if I'm not answering the right problem that you are experiencing.

Thanks and good luck!

answered Apr 03 '18 at 05:53

Aplan Studios

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Hi, why don't you add what should the OP do to get back all separated objects, after? That would make this answer much more useful... – m.ardito Apr 03 '18 at 07:20

score 1 · Answer 4 · answered Jan 20 '23 at 12:14

For blender 3.3+:

import bpy

# Get selected objects
selected_objects = bpy.context.selected_objects
Loop through selected objects
for obj in selected_objects:
    # Check if object has UV maps
    if obj.data.uv_layers:
        # Remove all UV maps
        while obj.data.uv_layers:
            obj.data.uv_layers.remove(obj.data.uv_layers[0])

How do I mass-remove UV maps from multiple objects?

4 Answers4

Loop through selected objects