oh - sorry. that wasn't too clear now i look at it.. replace the texture node with a texcoords node replace the swizzle nodes with component masks (one just R, one just G) and you'll get a black and white mask
Thank you for setting this up! But forgive me for being dense, these nodes are waaaay out of my comfort zone and I'm not getting the "mask" as far as I can tell? Chances are, I'm missing something here. This is what I have feeding into the alpha of my "flip" node and it just seems to be flipping everything, not just the…