Note: Not sure that it’s really snippet, because scene is quite complex. It is likely just test.
Not (properly) work on older video-card.
Techniques:
Volumetric Clouds with Mega Particles
Soft offscreen particles + This theme, thanks to Manou.
Modification of the Screen Space Ambient Occlusion for used with smoke.
ToDo:
Need to make correct SSAO bluring.
Need to remove artifacts on SSAO, caused by semitransparent smoke particles.
Need testing on different hardware.
Tested on Panda 1.8
Radeon HD 4850 - 100-130 FPS
GF 7300 GS - 8-10 FPS, Incorrect work
GF 7300 GS - 30-40 FPS, Without SSAO. Artifacts, caused by lack of precision in depth buffer.
