I have been looking around but Im still a little unsure about how to go about solving the following problem.
I have a wall with a brick texture on it but at the minute it looks too clean and perfect. I have a second texture (a sheet of moss) and I want to paint parts of this texture onto certain areas of the brick texture (perhaps in between the bricks). I have tried with the paint brush using things like the mask but still have had no luck.
Any ideas how to do this?