Blender 2.8 PBR Texture Painting: Roughness
In this tutorial I show how to paint roughness with Blender 2.8 using the texture painting and a texture slot for roughness.
I explain the principle of a roughness map and then I add a grungemap as a stencil for painting to map the roughness look more natural.
The sample grungemap can be dowloaded from here:
https://www.textures.com/download/overlays0088/138046
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