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Low discrepancy triangle light sampling
Posted: Wed Oct 09, 2019 2:10 pm
by alpistinho
I have implemented a new technique for sampling triangles that should provide better results on them.
This is based (copied) in
https://pharr.org/matt/blog/2019/02/27/ ... ing-1.html
The improvement should be most visible in scenes dominated by direct light.
Please give it a spin and keep a close eye for any issues
At 4 samples/pixel:
before:
after:
At 16 samples/pixel:
before:
after:
Re: Low discrepancy triangle light sampling
Posted: Thu Oct 10, 2019 1:43 am
by happyboy
alpistinho wrote: ↑Wed Oct 09, 2019 2:10 pm
Please give it a spin and keep a close eye for any issues
The improvement is obvious! Thanks!
Re: Low discrepancy triangle light sampling
Posted: Thu Oct 10, 2019 9:11 am
by Sharlybg
This is going to make product viz a lot faster. Thanks.
Re: Low discrepancy triangle light sampling
Posted: Thu Oct 10, 2019 11:28 am
by epilectrolytics
Thanks for this very welcome improvement!
Re: Low discrepancy triangle light sampling
Posted: Fri Oct 11, 2019 7:05 pm
by Sharlybg
It is activated by default or something special is needed in blendluxcore for that one ?
Re: Low discrepancy triangle light sampling
Posted: Fri Oct 11, 2019 7:26 pm
by alpistinho
Sharlybg wrote: ↑Fri Oct 11, 2019 7:05 pm
It is activated by default or something special is needed in blendluxcore for that one ?
It replaces the old code, so nothing is needed.
I don't think the difference is that big outside a few specific cases, so you might not be able to promptly see the difference.