If someone knows how the sky of world of warcraft is made (and to a lesser extent the ground of warcraft3 which I think is a clever use of marching squares), please let us know, Ive been wondering for 10+ years. It has an incredible amount of features (day, night, clouds, moon, stars, etc), it's gorgeous, light, updates beautifully every other frame or so and no, it's not rendered-to-texture. Well pretty sure it's not. It's so smooth, you dont see a poly nor a texel. It also runs on a 2002 computer. A marvel of tech-artistery.