playing with caustics

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CodeHD
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Re: playing with caustics

Post by CodeHD » Sun Jun 30, 2019 3:05 pm

also perhaps the reduction in resolution? That crop image looks rather like part of a 4K image than the 720p of the video :?:

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epilectrolytics
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Re: playing with caustics

Post by epilectrolytics » Sun Jun 30, 2019 3:30 pm

CodeHD wrote:
Sun Jun 30, 2019 3:05 pm
the 720p of the video :?:
Oops, sorry for not mentioning:
It is a 2880x1620 HEVC clip uploaded to dropbox but the dropbox browser player is just crap (downscaling to 720p).
Please download the clip and watch in VLC or something.
This applies for all videos in this thread or the OIDN-animations thread.
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Racleborg
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Re: playing with caustics

Post by Racleborg » Sun Jun 30, 2019 3:44 pm

CodeHD » Sun Jun 30, 2019 1:46 pm

I watched it a couple of times now, and if there is any residual firefly noise, then I can tell you it is not noticable to someone who doesn't know where to look for it ;)
Ignorance is bliss! :D ;)

CodeHD
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Re: playing with caustics

Post by CodeHD » Sun Jun 30, 2019 3:48 pm

epilectrolytics wrote:
Sun Jun 30, 2019 3:30 pm
Oops, sorry for not mentioning:
It is a 2880x1620 HEVC clip uploaded to dropbox but the dropbox browser player is just crap (downscaling to 720p).
Please download the clip and watch in VLC or something.
This applies for all videos in this thread or the OIDN-animations thread.
Aaah :D Now I see a hint of noise in those areas, including the fireflies if I pause the video. But still I find it to be hardly noticable, so very nice render! ;)

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epilectrolytics
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SDS Path Animation

Post by epilectrolytics » Fri Jul 05, 2019 12:16 pm

Animation of my pool test scene with periodic caustic cache.

Kind of works, though there are still firefly photons visible.
Added 25% metal shader with 0.01 roughness for better sun reflections.
640 samples = 6.5min/frame on RTX 2070, no denoising.
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CodeHD
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Re: playing with caustics

Post by CodeHD » Fri Jul 05, 2019 4:36 pm

Looks good :)

Did you compute the water with a fluid simulation or a plane + dymanic paint? (Or something else...)

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epilectrolytics
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Re: playing with caustics

Post by epilectrolytics » Fri Jul 05, 2019 4:48 pm

Thanks!

For the water I used a plane with the ocean modifier which is a bit over the top :D
Probably animated procedural displacement would have been better...
(EDIT: Maybe that would have worked only with Cycles because LuxCore does no material displacement yet)
Not yet tried fluid sim in Blender.
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epilectrolytics
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Re: playing with caustics

Post by epilectrolytics » Thu Jul 11, 2019 12:01 pm

Another demo to showcase the new engines.
Hybrid PathOCL + PGI + OIDN, 1440x1440Px á 800 samples, 4~5min/frame on my PC.
All glossy or specular materials, bottle with roughness, would have made BiDir struggle but Hybrid just walks through it.
Instead of motion blur I used DaVinci Resolve to create intermediate frames (25p->50p), no artefacts this time.
(Post sharpening enhanced residual noise, could have been avoided with more careful treatment.)
Usual disclaimer: Dropbox player ruins the video, please download and watch with VLC or else.
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B.Y.O.B.
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Re: playing with caustics

Post by B.Y.O.B. » Thu Jul 11, 2019 12:11 pm

Very nice. But yeah, the dropbox player completely destroys the video :o
Have you tried youtube/vimeo or so?
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epilectrolytics
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Re: playing with caustics

Post by epilectrolytics » Thu Jul 11, 2019 12:45 pm

Youtube and Vimeo do their own video conversion too though it is way better.
Dropbox just hosts the video as I created it so all the flaws are my responsibility :)
It's better when discussing quality topics not to have another conversion of the file done.
(Once my dropbox is full I will have to rethink though.)
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