Hello everyone,
I am (a bit desperately) searching for a 3D cloud algorithm which matches all criterias:
- The clouds can have a static shape and don't need to move
- The lighting must be dynamic
- The overall impression must be ok. It doesn't need to look 100% realistic but you shall recognize that this things are volumetric looking clouds
- The maximum time to render the clouds is 5 milliseconds
- I can't use compute shaders (I wish I could)
I know there are a lot of algorithms for clouds like Harris' clouds, ray marching, marching cubes, some other methods to visualize iso surfaces or some cheaper algorithms which still need compute shaders to work in given time. But then I look at a bunch of simulations and games and see there IS an method to render nice looking 3D clouds in short time. I just can't find it.
So I am asking you if anybody knows a method for rendering clouds which match my criterias.