playing with caustics

[CodeHD]

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

[epilectrolytics]

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.

[Racleborg]

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!

[CodeHD]

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 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!

[epilectrolytics]

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.

[CodeHD]

Looks good

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

[epilectrolytics]

Thanks!

For the water I used a plane with the ocean modifier which is a bit over the top
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.

[epilectrolytics]

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.

[B.Y.O.B.]

Very nice. But yeah, the dropbox player completely destroys the video
Have you tried youtube/vimeo or so?

[epilectrolytics]

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.)