Little doodle I did today was to work on getting rid of noise in shallow Depth of Field images in Redshift. Here are my notes from today:
Turn off DoF (Bokeh) and Motion blur.
Start with default Unified Sampling. Unified Sampling are PRIMARY RAYS. All the overrides are Secondary Rays.
Use overrides with AOVs to get clean, diffuse, refractions, reflections GI, SSS, etc...
Test each AOV with buckets in the interactive window till they are noise-free.
AFTER that is clean, turn on any DoF and then dive into Unified Sampling.
Defaults: Min 16
Max is MIN *4
Then start lowering Adaptive Error Threshold.
If still getting fireflys, lower Sample Filtering. If you go too low here it will get dark.
Always use 2x more GI rays than the samples max.
And that’s my new method. Here is the study.