Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: vizfactory on 2015-10-22, 14:09:09

Title: image with depth of field is still noisy
Post by: vizfactory on 2015-10-22, 14:09:09

Can you tell me what i can do to improve the quality? the image with depth of field is still noisy after 12 hour of rendering. Thank you
GI vs AA : 8
LSM :2
MSI: 15

(http://s22.postimg.org/4b55hbrup/13elements1.jpg)

Title: Re: image with depth of field is still noisy
Post by: Ludvik Koutny on 2015-10-22, 14:45:26

Just lower GI/AA further down to 2. You need to balance your AA rays with secondary rays. Right now, your lighting, shadows and reflections are clean while DoF is still noisy. Decreasing GI/AA further down to 2 should even the sampling out.

Title: Re: image with depth of field is still noisy
Post by: vizfactory on 2015-10-22, 16:00:30

Thank you Rawalanche.

Direct
(http://s15.postimg.org/jsy7urpff/13elements_CESSENTIAL_Direct.jpg)
Indirect
(http://s15.postimg.org/s8nsc9saj/13elements_CESSENTIAL_Indirect.jpg)
Reflect
(http://s15.postimg.org/zd5llazjv/13elements_CESSENTIAL_Reflect.jpg)
Refraction
(http://s15.postimg.org/8o999hrp7/13elements_CESSENTIAL_Refract.jpg)
Albedo
(http://s15.postimg.org/v1gzwasmz/13elements_CShading_Albedo.jpg)

I don't know what it is wrong with reflection, and what i must to change to materials to fix it

Title: Re: image with depth of field is still noisy
Post by: cecofuli on 2015-10-22, 16:28:17

As Rawalanche says, try to use  GI/AA further down to 2.
Unfortunately, Corona hasn't a good adaptive sampling.
So, DOF+Bright reflections is a very big, big problem.
In this situation, with my test, I can say that it's impossible to obtain clean image with reasonable render time.

Title: Re: image with depth of field is still noisy
Post by: Juraj on 2015-10-22, 16:36:47

Quote from: cecofuli on 2015-10-22, 16:28:17

In this situation, with my test, I can say that it's impossible to obtain clean image with reasonable render time.

It's pretty much this right now.

Title: Re: image with depth of field is still noisy
Post by: Ondra on 2015-10-22, 17:25:04

Can you send us the scene? I would like to try it with our adaptivity prototype (http://corona-renderer.com/upload)

Title: Re: image with depth of field is still noisy
Post by: vizfactory on 2015-10-23, 01:16:25

Thanks for the help, i will upload with dropbox.

Title: Re: image with depth of field is still noisy
Post by: arqrenderz on 2015-10-23, 02:14:36

Love to see those tests :)!!