Been working on the Universe Generator. I've gotten to planets. I have a large canvas object, and I am attempting to use it as a mask to blend two other textures together. (It's a heightmap, trying to blend together two tiled textures of rock and grass.) Unfortunately the mask effect only works with alpha, and canvas does not export alpha.
The heightmap is black and white. I was wondering if someone could whip up an effect that would utilize brightness/grayscale images to mask instead of the alpha channel. That would be awesome.
OR if there is another way to do this, I'd love to hear that as well.