So I made a creek/river going through a forest by using a painted shader. Now I am placing some grass in the scene and want it to be everywhere but in and right around the river. I know how to make it so the grass doesn't go in the river but I don't know how to expand the painted shader so that the grass will stop before it reaches what will be the river bank without using another painted shader. Any ideas?
Duplicate paint shader and add some extra strokes to make it bigger? ;)
Add a color adjust shader to the painted shader and adjust the sliders so the white area changes (smaller, larger, within the fading sides). You can test what it does by adding a surface layer at the end of the line with a testcolor, and the color adjust as its blending shader.