Isn't that using particles for fog? I didn't take a close look at it but I saw something about modifying snow to make fog, and that indicates particles.
You can certainly use particles for fog, but you will get a lot more overdraw, which means less speed. And it won't look as convincing as real volumetric fog... the fog won't be of uniform density.
You can certainly use particles for fog, but you will get a lot more overdraw, which means less speed. And it won't look as convincing as real volumetric fog... the fog won't be of uniform density.
Yup, it uses particles, but looks darn nice... it probably gets a big speed hit when used in real complex game enviroment and might not cool that cool either because of the particle clipping etc... but this demo is nice.
True HW fog has all kind of limitations like that it don't work at all with alpha... and what you have described in this thread is just really complicated.
IMO there is no way to use any volumetric (or regular) HW fog in our games unless Blitz evolves or something...