Just start to test Visibility driven Sampling aka portal without portal. normaly it is supposed to converge faster/better. But here are the result and it seem to be broken. it seem to provide fireflies while noise level didn't really improve.
VDS OFF
VDS ON
File :
https://drive.google.com/open?id=1odKP7 ... AuJAuRlw7e
VDS aka portals Test
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Please upload a testscene that allows developers to reproduce the problem, and attach some images.
Please upload a testscene that allows developers to reproduce the problem, and attach some images.
Re: VDS aka portals Test
My guess: Since fireflies are almost always unresolved caustics, it could be that the engine just finds those caustic paths earlier/better with the visibility map.
The version with visibilitymap has less noise (if we forget the fireflies).
Can you try to render without visibility map for a longer time?
Maybe the fireflies appear there as well if you render long enough.
(I would do it, but it's super hot in my room already)
The difference is much easier to see if you render with direct light only (pathdepth 1).
The version with visibilitymap has less noise (if we forget the fireflies).
Can you try to render without visibility map for a longer time?
Maybe the fireflies appear there as well if you render long enough.
(I would do it, but it's super hot in my room already)
Re: VDS aka portals Test
Not sure it is the case : this scene is design to especially help portal to shine. In other renderer the defference tend to be really noticeable even with global illumination.My guess: Since fireflies are almost always unresolved caustics, it could be that the engine just finds those caustic paths earlier/better with the visibility map.
this is a cycles test : https://plus.google.com/115529142611084 ... vG6i475vF3
here is a test on CPU for 45 sc.
VDS OFF
VDS ON
Re: VDS aka portals Test
More test .
There not so much defferent between them :
file : https://drive.google.com/open?id=1nDp67 ... LkIkwj4Z-k
VDS OFF
VDS ON
There not so much defferent between them :
file : https://drive.google.com/open?id=1nDp67 ... LkIkwj4Z-k
VDS OFF
VDS ON
Re: VDS aka portals Test
Hello. I've changed your scene a bit to have some direct light as Dade said to get that future to work properly.
And it definitly works.
Both images rendered to 1000 samples pathocl on gpu.
And it definitly works.
Both images rendered to 1000 samples pathocl on gpu.
WIndows 11 Pro Ryzen 7 5700x RTX 3090 32 GB RAM
Re: VDS aka portals Test
Ooh my bad didn't saw your answer until today
I'm glad it work. Thank you. I was in total panic mode.
Super sarmath. Please could you try with a tiny window.
Re: VDS aka portals Test
Here you have some test with small window...this time 2000 samples...
WIndows 11 Pro Ryzen 7 5700x RTX 3090 32 GB RAM
Re: VDS aka portals Test
Thanks you mate. now that i'm at home i decied to do test also and it work great as you said. animated gif :Here you have some test with small window...this time 2000 samples...
file:
https://drive.google.com/open?id=1a_4Tl ... Egx9odYqXp
Re: VDS aka portals Test
....and some bidir+metropolis again 2000 samples (uh so slow...looks like bidir+metro is very inefficient in this scenario?)
WIndows 11 Pro Ryzen 7 5700x RTX 3090 32 GB RAM