playing with caustics

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epilectrolytics
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volumetric cubo prism

Post by epilectrolytics » Sat Dec 29, 2018 1:06 pm

Bidir, took two days to render.
Denoising and color correction in Photoshop (don't get OptiX deoiser to work with Bidir).
Resolution and frame rate doubled in DaVinci Resolve.

https://www.dropbox.com/s/zaa55y8ch6ryjck/volcubo.mov
Last edited by epilectrolytics on Sat Dec 29, 2018 3:04 pm, edited 1 time in total.
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Re: playing with caustics

Post by B.Y.O.B. » Sat Dec 29, 2018 1:21 pm

Great result!
Some absorption color would be cool, to see which caustics are refracted and which are reflected :)
epilectrolytics wrote:
Sat Dec 29, 2018 1:06 pm
(don't get OptiX deoiser to work with Bidir)
It was only trained on unidirectional pathtracer input, so it doesn't work with Bidir.
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Re: playing with caustics

Post by epilectrolytics » Sat Dec 29, 2018 1:25 pm

B.Y.O.B. wrote:
Sat Dec 29, 2018 1:21 pm
Some absorption color would be cool, to see which caustics are refracted and which are reflected :)
Thanks!
I tried of course but the noise was worse and I didn't want a week long render...
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Re: playing with caustics

Post by Dade » Sat Dec 29, 2018 4:29 pm

It is a real beauty :!:
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Re: playing with caustics

Post by epilectrolytics » Sat Dec 29, 2018 8:13 pm

Thanks again!

So here is a quick and dirty dispersion render:
https://www.dropbox.com/s/5g1qhtsm3gnf7 ... bodisp.mov
volcubo.jpg
luxvolcaucubo.blend.zip
(772.13 KiB) Downloaded 41 times
B.Y.O.B. wrote:
Sat Dec 29, 2018 1:21 pm
It was only trained on unidirectional pathtracer input, so it doesn't work with Bidir.
The description of the D-noise plug-in suggests that everything, even photos could be denoised.
I didn't try because that plugin always lost the binary path after rebooting so I installed another.
But with better Bidir denoising rendering animated volumetric caustics with dispersion would be possible (on my Ryzen octocore).
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Re: playing with caustics

Post by lacilaci » Sun Dec 30, 2018 12:54 pm

epilectrolytics wrote:
Sat Dec 29, 2018 8:13 pm
Thanks again!

So here is a quick and dirty dispersion render:
https://www.dropbox.com/s/5g1qhtsm3gnf7 ... bodisp.mov

volcubo.jpg

luxvolcaucubo.blend.zip
B.Y.O.B. wrote:
Sat Dec 29, 2018 1:21 pm
It was only trained on unidirectional pathtracer input, so it doesn't work with Bidir.
The description of the D-noise plug-in suggests that everything, even photos could be denoised.
I didn't try because that plugin always lost the binary path after rebooting so I installed another.
But with better Bidir denoising rendering animated volumetric caustics with dispersion would be possible (on my Ryzen octocore).
It won't recognize the noise and denoising photos works only partially(if you can even say it is working)

here's the thing, it knows how montecarlo pathtracing noise looks and how to remove it.
Noise from photography is very different although the algorithm might confuse some of it as pathtracing noise so it might partially work.
BiDir noise is also different cause afaik it also includes lighttracing and who knows in what other differences.
It is actually not that hard to break the ai denoiser since it doesn't use additional passes, just enable chromatic abberation in camera settings and try to denoise.

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Re: playing with caustics

Post by Dade » Sun Dec 30, 2018 4:42 pm

lacilaci wrote:
Sun Dec 30, 2018 12:54 pm
It is actually not that hard to break the ai denoiser since it doesn't use additional passes, just enable chromatic abberation in camera settings and try to denoise.
Chromatic aberration is done after the denoiser so it can not have any effect (or BlendLuxCore builds the image pipeline in the wrong order :?:)
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Re: playing with caustics

Post by lacilaci » Sun Dec 30, 2018 5:02 pm

Dade wrote:
Sun Dec 30, 2018 4:42 pm
lacilaci wrote:
Sun Dec 30, 2018 12:54 pm
It is actually not that hard to break the ai denoiser since it doesn't use additional passes, just enable chromatic abberation in camera settings and try to denoise.
Chromatic aberration is done after the denoiser so it can not have any effect (or BlendLuxCore builds the image pipeline in the wrong order :?:)
but we were talking about the optix denoiser.

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softbodyslomo

Post by epilectrolytics » Tue Jan 15, 2019 7:24 pm

https://www.dropbox.com/s/qky4gg2suayb8 ... yslomo.mov

Bidirmetro as usual, slowed down 50% with simple frame blending.
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Re: playing with caustics

Post by B.Y.O.B. » Tue Jan 15, 2019 7:40 pm

Very cool, keep them coming.
I'd really like to make a short LuxCore demo reel at some point, but people don't post videos very often (which I can totally understand).
However, your work gives me hope :)
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