Dade wrote: ↑
Wed Dec 18, 2019 10:21 am
I was able to reproduce (for the first time) this problem with BAKECPU and caustic baking.
Quite strange stuff, looking into it.
Thanks for looking into it!
This is a really nasty thing and hard to catch.
My observation is that light tracing always shows a slight brightness variation, just in my last animation, clear glass with DOF I noticed that on close inspection the caustics vary from frame to frame by a small amount like 5% or so.
Once I use rough glass the variations become stronger, same with volumetrics.
Really explosive events like that shown above by Racleborg happen rarely to me, normally when I use PathCPU with light tracing at 100% for testing.
I think I noticed too that the behavior changes with the resolution.
Caustics baking will be another killer feature, providing one more way for SDS rendering (with higher specular depth) and will even work outside LuxCore!