OTOY Forums

I wonder if anyone's got a scene or a tutorial on how to shade turbulenceFD sims for Octane.
Smoke, fire, explosion.. I'm testing things here on my own with temperature, density and burn channels, but I'm not getting anywhere.

I can get it to render flames, but it's not affecting the shading of the smoke. The fire is also very bright and overexposed.
The smoke is bland and very seethrough. Not much shading going on.








Invert absorption is probably the wrong thing, but I thought it made better looking smoke.

I don't have much time but to give you a rough idea, I get good results with this approach:
1. reduce density
2. reduce volume step length
3. reduce emission power dramatically

at this point, tweak the absorption colour. When it shades badly it's almost always caused by a volume step length that is too large because in that case, the ray march only completes a single step over the entire volume (misses a LOT of detail!)