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Follow the light: Introducing path guiding in Cycles 

Blender
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Path guiding is a new feature coming in Blender 3.4 that will dramatically speed up rendering scenes in Cycles that contain complex lighting effects such as multi-bounce global illumination, volumetrics, and even caustics. This session will give a high-level overview of the concepts behind path guiding, how it is integrated into Cycles using Intel’s Open PGL library, and, more importantly, how artists can use this new technique to generate even more beautiful images. We demonstrate the advantages of path guiding on a set of different types of scenes and will give some advice on when path guiding can be helpful and not, as well as what artists need to consider when using it.
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"Follow the light: Introducing path guiding in Cycles" by Sebastian Herholz
Blender Conference 2022
2022-10-28 13:00 at the attic.

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4 окт 2024

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Комментарии : 39   
@Kram1032
@Kram1032 Год назад
Oh wow I get a mention, nice! I'm super looking forward to the future of this project. It's crazy how much it can boost image quality even now. Can't wait to see what happens once other kinds of paths are also guided
@poopiecon1489
@poopiecon1489 Год назад
when ?
@Kram1032
@Kram1032 Год назад
@@poopiecon1489 when what
@Kram1032
@Kram1032 Год назад
@@poopiecon1489 what did you mean by "when ?"
@poopiecon1489
@poopiecon1489 Год назад
@@Kram1032 when in the video timeline
@Kram1032
@Kram1032 Год назад
@@poopiecon1489 a mention? Pretty much at the end - check the slide at 27:25
@Albert_Riseal
@Albert_Riseal Год назад
Awesome! Everything that gives more realism to renders is awesome.
@Tidexon
@Tidexon Год назад
Excellent talk
@Octanen_
@Octanen_ Год назад
This is going to be amazing! Can't wait. Awesome keynotes all around
@josiahgil
@josiahgil Год назад
Cool stuff, as they always say, blender just keeps getting more amazing by the day.
@RicoCilliers
@RicoCilliers Год назад
super interesting, great talk!
@default7627
@default7627 Год назад
Thanks Sebastian
@3djimmy
@3djimmy Год назад
This will change everything so psyched
@vstreet7583
@vstreet7583 Год назад
A fascinating presentation. Thank you. Dg
@rjwh67220
@rjwh67220 Год назад
I’m pretty math literate, and I’d love to hear more about the math. I’m going to assume the equations you showed at the first are the real deal and tear them down on my own.
@hypersonicmonkeybrains3418
@hypersonicmonkeybrains3418 Год назад
So cool.
@McHox
@McHox Год назад
gpu pathguiding can't come soon enough
@MirceaKitsune
@MirceaKitsune Год назад
Thank you for this! Is path guiding a feature for CPU as well however? Especially for us Linux / AMD users on the free amdgpu driver and older GCN video cards, we don't benefit from such things as GPU support in Cycles: Cycles can be used to create short animations, but even then you can't go past 64 samples unless you want to render for over a month... a new way to reduce the noise when using few samples is a great way to compensate for that.
@QcDiablo
@QcDiablo Год назад
Currently, path guiding is CPU only.
@hugoantunesartwithblender
@hugoantunesartwithblender Год назад
Noiiiiiiice
@jeffg4686
@jeffg4686 Год назад
@18:20 - big difference.
@utura3141
@utura3141 Год назад
When do you guys think is gonna be implemented path guiding on volumetrics? That would be super helpfull!
@Dominicsky
@Dominicsky Год назад
I think this is great but I guess only when combined with Optix and not instead of Optix? I doubt there will be a huge speed boost if we'd have to drop Optix. Is this meant as an additional option?
@matejivi
@matejivi Год назад
great
@lukashilfiker6470
@lukashilfiker6470 Год назад
Any ideas when it will be GPU supported?
@SamEmilio2
@SamEmilio2 10 месяцев назад
Seeing as you haven't received an answer, I might as well give you my heresay.. I'd been wondering the same thing and saw a post on a forum saying that because it's still pretty early days, they want to get it to a more mature place before adding GPU support. I guess it's that much easier to continue working on it while it's CPU only or something
@lukashilfiker6470
@lukashilfiker6470 10 месяцев назад
@@SamEmilio2 Thanks Sam. Nobody uses CPU rendering anymore in the CGI World...
@sudd3660
@sudd3660 Год назад
3.4 just released, and path guiding is only for cpu, big bummer.
@Al1987ac
@Al1987ac Год назад
Yeah, I've tested it on Monster scene, and to be honest I don't see the difference.
@rjwh67220
@rjwh67220 Год назад
For now. Judging from the responses, I’d be very surprised if a GPU implementation didn’t show up in Blender soon. Those guys are really responsive.
@Escapist3D
@Escapist3D Год назад
Do we know when it might be available for GPU?
@maxmaxed2887
@maxmaxed2887 Год назад
I wish this was used to add a non-existent refractive/reflective caustics to Blender. Current implementation is fake and doesn't even work for nested refractive objects. It's a huge drawback of Blender which makes it impossible to render realistic scenes with glass/liquids inside of glass.
@Kimera_Alternate_Realities
@Kimera_Alternate_Realities Год назад
This is going to be a game changer.
@raulgalets
@raulgalets Год назад
agreed
@kendokaaa
@kendokaaa Год назад
In recent years we've had so many improvements to performance it's nuts
@rjwh67220
@rjwh67220 Год назад
You got that right, brother!
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