I have only one question.
how to composite and mixing diffuse texture?
Please also an attachment to them with images for that reply would be appreciated.
If you are using blender, you can do a color ramp with 3 colors (so 4 points), linked to a cloud texture, and bake the result to a texture and just save that.
jesus… ;( blender is user interface very bad. No other way?
I’m sure there is, just I mainly work with blender so I gave you that answer. There is probably a plugin that allows you to do the same in a photo editing software I’m sure.