I have an image that is approximately 50% black. I would like to have a particle system that can only be seen through the black parts of the image.
So I need an alpha channel. My question is, how exactly do I convert the black areas of the picture to an alpha of 0? What should the blending mode be? Is it better to use a sprite than a billboard? There are a few posts from years back addressing this, but I need something even more dumbed down because this is just not making sense to me. thanks, thescreamingdrills
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