Hello! I want to paint a part of one texture with another in a material. Like, for example, Paradox Interactive does on their engine for countries flags. I know, that they don’t use UE 4, but I am sure, that is it possible in UE 4 two. I am not going to use their textures, that is just an example of what I want to achieve with my own. I just don’t know, where else and for what purpose these technology may be used.
Example 1. (Victoria 2.)
As you may see here, white half-transpanent part of a round is painted with nation’s flag. How can I do the same, if I have a texture, part of what I want to paint, and a texture, which I want to use as a paint. What shall I do?