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Assignment — Blender Manual
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Material Library — Blender Manual
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Material Utilities — Blender Manual
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Blender 2.8 Tutorial
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![2.91] Blender Tutorial: How to Completely Delete Materials - YouTube](https://i.ytimg.com/vi/FqfrXPmq2vg/maxresdefault.jpg "2.91] Blender Tutorial: How to Completely Delete Materials - YouTube")