CCOVIZ
February 5, 2019, 12:33am
21
Nice to read that! You should have a close look at the Stephen Hill blog post, he seems to fix some caveat of the initial presentation.
Totally understand that!
Well, judging by the pictures posted on page 1 from V-Ray for Modo, apparently it does.
vlado
February 5, 2019, 9:38pm
23
Hmm. Interesting. You’ll be able to check it out anyways
Best regards,
1funk
February 6, 2019, 5:24am
24
@vlado are there any plans to get diffuse roughness working on GPU?
CCOVIZ
March 29, 2019, 12:45pm
26
gaia
April 1, 2019, 10:52am
27
Hello all
anchovy
November 15, 2022, 9:56pm
28
vlado:
That’s a good point about the diffuse roughness, it’s been on my “to do” list to switch to the Oren-Nayar implementation since forever, it’s probably time
Thanks for the other suggestions as well; we are looking into better filtering for bump and normal maps and we’ve done some experiments, but things are more complicated when applied in practice than what the papers are suggesting.
Better energy preservation for glossy materials is also on the “to do” list; the trick here is to do it without sacrificing performance. That’s a good question though, if you had to choose between a X% slower render and better energy preservation, which would you choose? (Obviously depends on the X, but how much would be acceptable?) For Blender, someone mentioned about 2.5% slowdown, but it might be actually higher in V-Ray because the BRDF code is more critical to performance.
Best regards,
Vlado-
Any more exploration in this area? Missing Oren-Nayar
Thanks
-Michael
Indeed, did Oren-Nayar get implemented as rooughness model for the VrayMaterial in 3dsMax? Lost track of this in the changelogs, I have to admit.
