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How can I set my favorite color to all of the selected objects?

I can't attach my objects not at all.

The number of objects is high and I can not adjust their color vertex one by one.

Sorry for my bad english.

Thanks

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this answer is for vertex color of single object enter image description here

I converted it to multiple objects:

import bpy
import random
import time
# start in object mode
objects = bpy.context.scene.objects
for obj in objects:
    
    mesh = obj.data

    if not mesh.vertex_colors:
        mesh.vertex_colors.new()


    color_layer = mesh.vertex_colors["Col"]

    # or you could avoid using the color_layer name
    # color_layer = mesh.vertex_colors.active  

    i = 0
    for poly in mesh.polygons:
        for idx in poly.loop_indices:
            color_layer.data[i].color = (0, 1, 0, 1)
            i += 1
    # set to vertex paint mode to see the result
    bpy.ops.object.mode_set(mode='VERTEX_PAINT')
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  • $\begingroup$ Hello Seyed, I'm trying to use your script and keep getting this error with not much happening- Traceback (most recent call last): File "M:\3D\Jen_n_Tim\ShatteredMoon\ShatteredMoon_V2.Bake.blend\Text", line 10, in <module> AttributeError: 'NoneType' object has no attribute 'vertex_colors' Error: Python script failed, check the message in the system console Any ideas, or does it not work in Blender 2.92? I tried with both mesh.vertex_colors.new() and mesh.vertex_colors.active same result. $\endgroup$
    – MarkS
    Apr 10 at 22:24

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