I know this is more of a shader request, but having taken a look at erase.fx, I thought someone could help me:
What I need is a shader that works like Erase, but instead of taking the alpha channel and erasing with it, I'd like it to take one of the color channels instead.
I need it for pasting transparency into a Canvas, where the opacity would be stored in one of the color channels. I already tried the Grayscale To Opacity shader with Erase on top of it, as well as through an intermediate Canvas, but it didn't work.
Thank you in advance.