Is it possible to combine the contents of 2 separate canvas elements into a single canvas element?
Something like an equivalent of 'Flattening' two or more layers in Photoshop...?
I can think of a round about way, but am not so sure about it. I export the contents of both the canvi (lol) in the form of .png's, and then have a third canvas element draw both images with some sort of blending algorithm (xor, blend, negative, etc.).