Hi,
I'm using Affinity Photo to edit hand painted textures for game use. I'm trying to separate out the painted stuff and generate a clean, solid alpha channel for game use, that is, no grays except for antialiasing at the very edges. In PS, I'd grab the red or blue channel, up the contrast, clean any dust or blips and use that as the alpha. In Affinity, when I try the Filter>Erase White Paper I get a subtle transparency in the stuff that should be opaque, and a subtle haze/translucency in the stuff that should be invisible in the game. Any suggestions for a quick workflow that would clear out something like this? I would think it would be easy, but I'm pretty new and can't figure out the steps. Thanks in advance!