Hi everyone

I'd like to use a pre made procedural sky and add a texture of a big fat moon to it. But I have no idea how to do it... I don't have enough knowledge about materials expressions so I want to know if there is some tutorials which could explain how to add a texture in a procedural sky, like a fix moon and, best of all, how it could move around according to the dominant Light I have in my map (so I can easylly move both the light angle and moon position...)

Looks like difficult to me and I can't find any tuts on this particular problem.

Thanks for help !