Multi Material Master
'Multi Material Master' helps you to control multiple materials at once.
You can find add-on in the right sidebar of the Blender viewport panel. If the sidebar is not visible, press 'N' on your keyboard or click the arrow icon in the top right corner.
Supports Blender versions 3.0 or higher (verified up to version 4.2.0 LTS).
Note
The file you need to download differs for Blender 3.x and 4.x versions.
Generate Group Node Input
Adds group nodes to the inputs of the principled BSDF in the materials of the selected objects. By manipulating these group nodes, you can control all materials at once. For example, this allows you to simultaneously adjust the saturation, roughness, and other properties of all materials.
Bake Colors to Vertex Colors
Store the color (base color or emission color) in the vertex color of the selected objects.
Note
This is useful in cases where there is a limitation on the number of materials, such as with Sketchfab.