Using painting and splat maps in landscape material?

Development Rendering
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1

Can you combine the use of splat maps and painting in a landscape material?

Is it possible to do something like this, use the spat maps to apply the texture to the terrain and then remove them but keep the result so as to be able to then paint on the terrain?

I’m exploring any method that would allow the use of both splat map and painting on a landscape.

2

Yep, you can paint a layer, then use a splat map to have several textures within that layer.

3

Can you provide some more info about the process ?