shedofjoy opened this issue on Jan 03, 2009 · 129 posts
bagginsbill posted Fri, 09 January 2009 at 3:45 PM
I've been trying to make a shader do this for years. In this mud shader, I had two effects - puddles and splatter droplets. The splatter is the same as I've used before trying to get water droplets on skin. But I could never get them to look right.
The difference now is that instead of using a simple Edge_Blend for the amount of reflection, I'm actually using the Fresnel equations that exactly describe how reflections vary with viewing angle. I used to think that the approximations I've always used were good enough. But they're not. You have to use exactly the real physics, or it doesn't come off right.
Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)