Print Page - Renders produce patchy spots of light

Title: Renders produce patchy spots of light
Post by: blessid on September 02, 2013, 09:25:57 AM

Hey everyone,

I am fairly new to KeyShot and am still getting used to it. I am currently working on a scene to render a stool i have designed. I was having trouble replicating a good realistic looking floor, so i decided to download an Arroway wood floor texture. The texture is great, however, when i use the included reflectivity map, no matter how i adjust the parameters, and no matter what camera angle i use, i end up with patchy spots of light all over my scene (see attached image).

It would be great if i could get some input/a solution for this soon as I'm working on these images to update my portfolio prior to completing a few internship and job applications.

Thanks in advance,
Luke

Title: Re: Renders produce patchy spots of light
Post by: DriesV on September 02, 2013, 09:49:33 AM

How did you render that image? Advanced settings?
If so, do you get the same results using the max. time/samples render methods?

Care to share your scene (ksp package)?

Dries

Title: Re: Renders produce patchy spots of light
Post by: blessid on September 02, 2013, 02:17:51 PM

Hey Dries,

Yes the original was produced using advanced settings. I have just run a test on both max time and max samples and produce similar results, though overall the latter two options do show less spots of light...

Thoughts?

Thanks in advance,
Luke

Title: Re: Renders produce patchy spots of light
Post by: DriesV on September 02, 2013, 11:29:27 PM

Hmm, hard to tell.
Have you enabled focused caustics maybe?

It would really help if you uploaded a package of your scene here. (File > Save Package...)

Dries

Title: Re: Renders produce patchy spots of light
Post by: blessid on September 05, 2013, 06:55:57 AM

Hey Dries,

I would have no idea if focused caustics is active, nor how I would find out! Within the render settings (advanced control) the caustic parameter is set to the minimum if that helps?
I have created a package of the scene as you requested but it is nearly a GB thus will not upload!

Thanks for all you help so far!
Luke

Title: Re: Renders produce patchy spots of light
Post by: Chad Holton on September 05, 2013, 07:55:04 AM

Hi Luke,

Please upload using https://keyshot.wetransfer.com/ (https://keyshot.wetransfer.com/) and send to chad@luxion.com. I'll take a look.

Thanks,
Chad

Title: Re: Renders produce patchy spots of light
Post by: blessid on September 05, 2013, 08:34:24 AM

Hey Chad,

The scene should be with you now. Thanks in advance for your help!

All the best,
Luke

Title: Re: Renders produce patchy spots of light
Post by: Chad Holton on September 05, 2013, 11:28:18 AM

Thanks for sending, Luke. I checked it out and the issue was as Dries suspected. Just go into the Project window and under the Settings tab uncheck "Focused Caustics" and you should be good to go.

Take care,
Chad

KeyShot Forum

Technical discussions => Materials => Topic started by: blessid on September 02, 2013, 09:25:57 AM