KeyShot Forum

Technical discussions => Rendering => Topic started by: Zvi on January 05, 2017, 02:09:53 am

Title: White noise
Post by: Zvi on January 05, 2017, 02:09:53 am
How can I solve this problem of white noise?
Title: Re: White noise
Post by: Zvi on January 05, 2017, 03:43:47 am
Another attachment
Title: Re: White noise
Post by: Finema on January 05, 2017, 06:15:23 am
Hi
have you try without Global illumination ?
Title: Re: White noise
Post by: NM-92 on January 05, 2017, 06:55:43 am
In some cases, rendering in interior mode can help.
Title: Re: White noise
Post by: Will Gibbons on January 05, 2017, 06:59:24 am
Before your question can be answered, we need to identify the cause of the noise. If you can attach your scene as a .ksp file, it'll be easier to help. Do you have physical lights in this scene? What are your render settings?
Title: Re: White noise
Post by: Zvi on January 05, 2017, 10:21:20 am
Hi
have you try without Global illumination ?
Thank you, bu it didn't changed.
Title: Re: White noise
Post by: Zvi on January 05, 2017, 10:23:49 am
Before your question can be answered, we need to identify the cause of the noise. If you can attach your scene as a .ksp file, it'll be easier to help. Do you have physical lights in this scene? What are your render settings?
This are the settings.
Title: Re: White noise
Post by: Zvi on January 05, 2017, 11:48:18 am
In some cases, rendering in interior mode can help.
Thanks a lot, it really helped, but  still remains some noise.
Title: Re: White noise
Post by: Finema on January 05, 2017, 10:09:13 pm
have you try to reduce Ray Bounces ? 50 is not necessary in your render
Title: Re: White noise
Post by: Zvi on January 05, 2017, 11:44:37 pm
have you try to reduce Ray Bounces ? 50 is not necessary in your render
The last attached image is in interior mode with only 6 Ray Bounces, and still there is white noise.
Title: Re: White noise
Post by: Finema on January 05, 2017, 11:59:22 pm
try to increase samples (32 or 64) in yours metal materials
Title: Re: White noise
Post by: Zvi on January 06, 2017, 04:31:58 am
try to increase samples (32 or 64) in yours metal materials
I did so with 64 samples, and the white noise is still there, as you can see.
Title: Re: White noise
Post by: Esben Oxholm on January 06, 2017, 06:37:55 am
Do you use any emissive materials or physical lights in your scene?
Title: Re: White noise
Post by: Will Gibbons on January 06, 2017, 08:47:56 am
Also, add some subtle roughness to your materials that are showing white spots, and make sure they have a material samples set to about 16. Your render samples should be good enough around 64. Make sure you have global illumination turned on. 10 Ray Bounces should be plenty.
Title: Re: White noise
Post by: Zvi on January 09, 2017, 12:22:14 pm
Do you use any emissive materials or physical lights in your scene?
Not close to this noise.
Title: Re: White noise
Post by: Zvi on January 09, 2017, 09:49:42 pm
Also, add some subtle roughness to your materials that are showing white spots, and make sure they have a material samples set to about 16. Your render samples should be good enough around 64. Make sure you have global illumination turned on. 10 Ray Bounces should be plenty.
Thanks Will, increasing the roughness really solved the problem of white noise. finally!
Title: Re: White noise
Post by: Will Gibbons on January 12, 2017, 08:17:17 am
Also, add some subtle roughness to your materials that are showing white spots, and make sure they have a material samples set to about 16. Your render samples should be good enough around 64. Make sure you have global illumination turned on. 10 Ray Bounces should be plenty.
Thanks Will, increasing the roughness really solved the problem of white noise. finally!

Glad to hear that!