Interactive Denoiser in Maya
To activate the RfM Interactive Denoiser, fire up a viewport render and select the Denoiser icon
Cheap First Pass
If checked, the first pass will use a cheaper (slightly faster but lower quality) heuristic.
This can be useful if rendering something that is converging very quickly and you want to prioritize getting a denoised result faster.
Min Samples
The minimum number of average samples per bucket before the interactive denoiser runs for the first time. Changing this preference requires the render to be restarted for this option to be respected
Interval
The time interval in between denoise runs (in seconds)
Note : At this time, the interactive denoiser works with RIS
Note : To enhance interactivity when working on asset lookdev, try increasing the min samples to 8-10 and reduce back down to 2 - 4 when working on a larger scene.