- Half of the time, I get the same render in viewport than in the final render (Image 1, left). It's way too bright and very blocky, which I can't manage to get rid of. The renders use Adaptive Sampling, as expected, and take around 10 min. For info the density and Cd values of my VDB are all between 0 and 1, I corrected that already after seeing this fix under another post; and changing the VDB resolution doesn't change anything.
- The other half of the time, my viewport looks like image 2 (right). The render uses bucket rendering with a bucket size of 256 (it's set to 128 in the Redshift node). It also goes waaay faster (finished in seconds), but with a longer initial startup time. The look is closer to what I'm going for but doesn't seem to use denoising.
In the viewport, I can switch from case 1 to case 2 by toggling "Set Missing Widths = 0.0001" ON or OFF in my SOP Import node. Sometimes it works when I turn it on, sometimes when I turn it off. At some point, minutes or hours later, it "randomly" switches back to case 1.
The final render (Render to Disk) systematically goes to case 1.
Can someone more experienced tell me what is going on? I feel like a caveman witnessing fire for the first time.