Hi, I've been using this for a while and it's great but it doesn't update with terrain 3D when I edit my terrain. I would have no problem with this if I could just erase the parts I need to redo and repaint them but after editing the terrain in a given area, if the grass I originally painted there is above or below the terrain, it can't be erased. I have to clear all of it and start from scratch which just takes way too much time.
I've been able to use the shader from this addon with the foliage painter built into Terrain3D but the interaction doesn't work anymore in this case obviously.
So my question is, where exactly is the interaction handled in the shader? Can I finagle it to work with Terrain3D somehow? I'm sure it's possible I'm just having trouble identifying exactly where/how interaction is handled between the GDScript and the shader code.