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Material Library — Blender Manual
How to delete unused materials in Blender - cgian.com
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rendering - How to delete unwanted material? - Blender Stack Exchange
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Assignation d'un Matériau. — Blender Manual
deleting unused materials and textures - Basics & Interface - Blender Artists Community
Clean material slots that are not used. — Right-Click Select
texturing - How to remove unused textures and materials - Blender Stack Exchange
How To Delete a Material in Blender - Artisticrender.com
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How to delete your unused materials in Blender 2.8? | DESIGN SYNC
How do I delete Materials? - Basics & Interface - Blender Artists Community
How to delete unused materials in Blender - cgian.com
