So I saw this cool Lightwave tut for making 3D clouds for a planet's atmosphere, you know, those really gorgeous shots of planets that you can tell have 3d clouds and not just some flat texture map. Well anyways, I decided to take a stab at making it AMified. So far it's turning out well, though I've run into a bit of a bump with it. The bump being that I kind of want the texture to 'taper' at the top, to simulate the 3d effect of clouds better. Now in lightwave, they used something called a