CGI tech news box

General project and community related discussions and offtopic threads.
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Sharlybg
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Re: CGI tech news box

Post by Sharlybg » Mon Mar 04, 2019 9:35 am

I'd suggest to ditch the biased caustic branch of PGI in favour of this.
As Dade said before this method isn't feasable on GPU. but could be interesting for Cpu based engine like Bidir and CPU path.
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kintuX
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Re: CGI tech news box

Post by kintuX » Sat Mar 09, 2019 11:34 am

epilectrolytics wrote:
Mon Mar 04, 2019 7:30 am
Thanks for that link!
Apparently this is accelerating unbiased path tracing including SDS paths.
If it is feasible to implement this I'd suggest to ditch the biased caustic branch of PGI in favour of this.
Hardly so.
I doubt we'll see it in Lux anytime in next couple of years. Priorities changed in favor of fast and cheap - arch. interior eyecandies. While a small group of dev. can't do much, myself alone inapt (being foremost an artist, programming is damn hard / respect to dev.) i just accepted the fact: Quality (precise, complex, feature rich light sim) is a thing of the past here, but maybe with appleseed is the future... ;) So i swim on.

& BTW
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epilectrolytics
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Re: CGI tech news box

Post by epilectrolytics » Sat Mar 09, 2019 1:19 pm

kintuX wrote:
Sat Mar 09, 2019 11:34 am
Priorities changed in favor of fast and cheap - arch. interior eyecandies.
Quality (precise, complex, feature rich light sim) is a thing of the past here
Thanks for your answer.
I'm not that pessimistic :)
The foray into fast interior rendering with version 2.2 is welcome to me even if that's not my specialty.
And the good thing about PGI is that it can also be used for unbiased rendering by guiding the sampling strategy.
I'm still hoping that this will be given a shot after the indirect cache version is completed.

The current implementation of the caustic cache is not finished, we'll have to wait how that will turn out.
As with all photon mappers the initial settings are problematic.
While experimenting with this I came to the personal conclusion that I really want a progressive unbiased caustic engine capable of doing SDS paths.
But that's apparently one of the most tricky things ever, no one has a working version (there are papers but no finished engines).
But if this is somehow possible I'm confident Dade will do it sooner or later.
I don't think users interested in precision and accuracy are abandoned only because those preferring speed currently get much (deserved) attention.
LuxCore can do both ways.
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kintuX
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Re: CGI tech news box

Post by kintuX » Mon Mar 11, 2019 12:42 pm

epilectrolytics wrote:
Sat Mar 09, 2019 1:19 pm
kintuX wrote:
Sat Mar 09, 2019 11:34 am
Priorities changed in favor of fast and cheap - arch. interior eyecandies.
Quality (precise, complex, feature rich light sim) is a thing of the past here
Thanks for your answer.
I'm not that pessimistic :)
The foray into fast interior rendering with version 2.2 is welcome to me even if that's not my specialty.
And the good thing about PGI is that it can also be used for unbiased rendering by guiding the sampling strategy.
I'm still hoping that this will be given a shot after the indirect cache version is completed.

The current implementation of the caustic cache is not finished, we'll have to wait how that will turn out.
As with all photon mappers the initial settings are problematic.
While experimenting with this I came to the personal conclusion that I really want a progressive unbiased caustic engine capable of doing SDS paths.
But that's apparently one of the most tricky things ever, no one has a working version (there are papers but no finished engines).
But if this is somehow possible I'm confident Dade will do it sooner or later.
I don't think users interested in precision and accuracy are abandoned only because those preferring speed currently get much (deserved) attention.
LuxCore can do both ways.
I'm just being realistic, not fooling anyone. I prefer quality, since i deliver quality works, that's all.
Speed kills! ;)

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Sharlybg
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Re: CGI tech news box

Post by Sharlybg » Mon Mar 11, 2019 2:10 pm

I'm just being realistic, not fooling anyone. I prefer quality, since i deliver quality works, that's all.
Speed kills! ;)
So something like Bidir + online learning will be great for you :?:
Also Spectral rendering.

Anyway currently the project need to attract more user. And be closer to what is normal today in term of speed and user friendlyness. This doesn't mean quality is left behind ( you can still use Bidir + metropolis on Power threadripper for precision).
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