Multiple ("overlapping") textures in material nodes - Materials and Textures - Blender Artists Community
How to gradually blend two materials together? - Blender Stack Exchange
Pixel Depth Offset and Layered Material Painting: Crazy useful Unreal features Blender needs! - #15 by Laserschwert - User Feedback - Blender Developer Talk
Material blending video? - Materials and Textures - Blender Artists Community
part 5 advanced texturing in blender 2.8 blending textures - YouTube
Transparent Materials in Cycles – Blender Knowledgebase