Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: COSTEL on 2020-05-01, 16:46:25

Title: I'm new to corona and have this weird Light(artefact)
Post by: COSTEL on 2020-05-01, 16:46:25
Hey everyone,

I'm new to corona and I am rendering an interior right now.

I have attached a screenshot of my problem, can somebody please help me with what I have done wrong

Please.

Thanks for the replies.
Title: Re: I'm new to corona and have this weird Light(artefact)
Post by: TomG on 2020-05-01, 16:52:31
Looks like two things, though impossible to say for sure without knowing more about the scene (also let us know, which host software, which version of Corona, as well as a description of how the scene is set up). Anyway, my guess is:

1) You have a light source very close to the wall, causing a super bright area

2) You have AI denoising enabled, which is causing the strange patterning in the bright spot, which may be why you don't recognize it as a bright highlight from a light (leave it to run for more passes and it will resolve, or turn off AI denoising)

Due to the AI denoising (or what I think is AI denoising), I can't really tell if there might be something else going on in there.
Title: Re: I'm new to corona and have this weird Light(artefact)
Post by: GeorgeK on 2020-05-01, 17:13:14
Hey everyone,

I'm new to corona and I am rendering an interior right now.

I have attached a screenshot of my problem, can somebody please help me with what I have done wrong

Please.

Thanks for the replies.

Also, looks like a NaN error.
Title: Re: I'm new to corona and have this weird Light(artefact)
Post by: TomG on 2020-05-01, 17:36:41
Could be, hard to see :) To check, for the original poster, right click on a pixel in the dark area in the bright spot, to see if it returns an RGB value, or says "NaN", and let us know!
Title: Re: I'm new to corona and have this weird Light(artefact)
Post by: COSTEL on 2020-05-02, 13:55:01
Hey everyone.

Thanks for the quick replies, you really helped me.

And it had to do with the denoising mode. I switched from Nvidia GPU to Corona high quality and it is gone now.

Thanks again