I'm trying to figure out how I can designate a mask to be the Alpha for the file. Everytime I create a transparency mask for a layer (in a single layer file I might add), and then save the file as TGA (32bit) for example, I always lose the mask. So I reopen it, and there's an alpha mask in the channels box, but its blank!
I have a ridiculous workaround, but its a major pain, and involves saving the file tempoariliy as a tga, then reopening, pasting my mask on the alpha lyer and then resaving! (ugh).
So what this boils down to is, when I've applied a transparency mask to a layer and then want to flatten the stack, how can I make the layer 0 mask become the designated alpha?