Is it possible to create a shader that will take the alpha of one image and combine it with the alpha from another image?
What I want to do is create a spraying water effect, and I want the water stage of the texture to scroll quickly, but the lpah blending needs to be a combination of both the water texture’s alpha and a second alpha gradient so that the water is invisible at the edge of the texture but visible at the top (eg the water sprays out and fades away)