Grain in smoke

[toddglee]

I am using a large scale smoke emitter from a moving truck. The truck goes pretty close to the camera, and there is considerable grain in the render. Any ideas how to fix this?

[LarsSonparsson]

Is "use light cache" active in Phoenix render settings? If so, try turning it off or try to decrease it to 0.2 or lower.

[toddglee]

I don't see that option is it in the Volumetric settings? I am using Scanline renderer in 3dsMax BTW

[LarsSonparsson]

I don't see that option is it in the Volumetric settings? I am using Scanline renderer in 3dsMax BTW

Ah ok, then I don't know. Haven't used Phoenix with scanline.

[Svetlin.Nikolov]

Hey,

The Phoenix Light Cache is there for Scanline as well: https://docs.chaosgroup.com/display/...lor-Parameters

This really sounds like your best bet. Additionally, please check if Probabilistic Shading is on and try to disable it from the Phoenix Atmosphere: https://docs.chaosgroup.com/display/...spheresettings

Cheers!

[toddglee]

Unchecking Probabilistic Shading did the trick. Thanks!

[Svetlin.Nikolov]

Yay! Glad it helped