Anybody know how to paint in vines with a alpha mask using vertex painting? Been trying all day and can’t seem to get it to work. 
I think you need a black and white texture to use as a mask. Otherwise, your plane would need a lot a vertices to get that vines masked out
I have a mask and mesh is dense enough it’s just i’m having a problems getting the black part of the mask transparent whenever i vertex paint over the rockwall. Understand where im getting at? Is there material setup solution you can suggest?
You shouldn’t just paint your Ivy textures directly on the rock, but rather a blend of rocks and ivy textures.