Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] General Discussion => Topic started by: Ist1111 on 2023-05-29, 21:51:12

Title: Intel Denoiser prefiltering
Post by: Ist1111 on 2023-05-29, 21:51:12
Hi there,

I wonder what version of Intel denoiser is used in Corona 9. I am on Corona 9 hotfix1 now.

Does the current version use pre-filtering? Is there a way to turn prefiltering on if it is not on?

I get a similar splotchy effect like it is on the example images of 1.3 or 1.4 without prefiltering on the link below. Any idea how to fix this?

https://www.cgchannel.com/2021/05/intel-releases-open-image-denoise-1-4/

Thanks
Istvan
 
Title: Re: Intel Denoiser prefiltering
Post by: Juraj on 2023-05-29, 23:47:08
Curious for answer too. nVidia's Optix Denoiser gets updated automatically by drivers, I wonder how often Optix receives updates, it's definitely the best denoiser right now in Corona.
Title: Re: Intel Denoiser prefiltering
Post by: burnin on 2023-05-30, 08:48:23
psst, v.2 coming in...
https://www.openimagedenoise.org/
Title: Re: Intel Denoiser prefiltering
Post by: Ist1111 on 2023-05-30, 10:20:18
Not sure which version it has at the moment but it gives an insane result! I render my animation in 8K with it. The average render time per frame is 6 mins with 3900x machines! It is a complex aircraft interior scene, basically a plastic tube inside with a low light level. It definitely needs some love (fixing) in post and I had to tweak the materials but it worth it. Usually with have 30mins or over per frame render time with these scenes.
Title: Re: Intel Denoiser prefiltering
Post by: burnin on 2023-05-30, 17:03:34
Latest daily for C4D comes w/ LegionOpenImageDenoise-1.4.1-v143-Release
I guess next Corona version will most likely come w/ OIDN v2.x that can be applied on any modern GPU (in real time) and (hopefully) temporal denoiser which is currently being worked on.
Title: Re: Intel Denoiser prefiltering
Post by: maru on 2023-05-30, 17:51:33
It's 1.4.1, and yes, we are aware of the new version so it may be available soon.

Here is a random example of the current 1.4.1 version with prefiltering. Sorry, I do not have the information how many passes it was, but you can see how it compares with the NVIDIA one:
https://corona-renderer.com/comparer/ktLg9K
Title: Re: Intel Denoiser prefiltering
Post by: burnin on 2023-05-30, 18:59:17
Thank you for info.