Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Bug Reporting => [Max] Resolved Bugs => Topic started by: arqrenderz on 2021-05-28, 15:19:04

Title: Shading error
Post by: arqrenderz on 2021-05-28, 15:19:04
I'm having these strange artifacts on some of my renderings, any one has encounter this ?
Any clue how to solve it ? not all renderings have this behavior on the same file, no clue what's going on..
Title: Re: Shading error
Post by: romullus on 2021-05-28, 15:31:54
This looks like adaptive enviroment sampler issue. Can you try to disable it and see if that helps?

Also i think that support team would like to examine your scene to see if devs could improve the code. https://corona-renderer.com/upload
Title: Re: Shading error
Post by: TomG on 2021-05-28, 15:46:30
Also which version of Max, and which version of Corona?
Title: Re: Shading error
Post by: arqrenderz on 2021-05-28, 15:54:10
Hi, its 3dsmax 2021.3 and corona 6.1
Can confirm its the adaptive light solve causing the issue.
Wil update the post with the scene today
Thx
Title: Re: Shading error
Post by: arqrenderz on 2021-05-29, 01:09:24
Uploaded with the dropbox private uploader
File name "Apto tipo 9 - 48.9 m2 adaptive issue.zip"
Title: Re: Shading error
Post by: rowmanns on 2021-05-31, 14:21:42
Hi,

Thanks for sending the scene through. We have issues similar to this reported already.

We will investigate and let you know :)

Rowan
Title: Re: Shading error
Post by: Kris H on 2021-06-02, 16:05:28
Uploaded with the dropbox private uploader
File name "Apto tipo 9 - 48.9 m2 adaptive issue.zip"

Hello arqrenderz,

Thank you for reporting it to us, we will update you once we will have any new info :)

(Report ID=CRMAX-656)
Title: Re: Shading error
Post by: dj_buckley on 2021-06-02, 21:52:42
Is this actively being worked on and investigated?  I remember raising this issue over a year ago, and then again in November.  At the minute it's just another new feature that doesn't quite work.  I now leave it turned off.  In a live production environment it's too hit and miss to chance it and leave a render going only to come back and discover it's got these issues, because there's no guidance on specific setups where we might encounter it.  It's just a case of press render and hope the render doesn't have artifacts when you come back to it.  Safer to just leave it off permanently imo until it's fixed.
Title: Re: Shading error
Post by: rowmanns on 2021-06-22, 10:26:15
I'm having these strange artifacts on some of my renderings, any one has encounter this ?
Any clue how to solve it ? not all renderings have this behavior on the same file, no clue what's going on..
Hi,

Which camera view is this in your scene? I am not able to find these objects..

Thanks,

Rowan

Is this actively being worked on and investigated?  I remember raising this issue over a year ago, and then again in November.  At the minute it's just another new feature that doesn't quite work.  I now leave it turned off.  In a live production environment it's too hit and miss to chance it and leave a render going only to come back and discover it's got these issues, because there's no guidance on specific setups where we might encounter it.  It's just a case of press render and hope the render doesn't have artifacts when you come back to it.  Safer to just leave it off permanently imo until it's fixed.
Hi,

Yes it is being looked into, unfortunately it is a really difficult thing to fix which is why it is taking so long.

Thanks
Title: Re: Shading error
Post by: arqrenderz on 2021-06-22, 18:41:19
The error suddenly disappeared ... I know its weird, but trust me I really want this thing sorted... The camera for that file is a bedroom camera
Image attached
Sorry but i tried everything to make the bug appear again with no luck
Title: Re: Shading error
Post by: romullus on 2021-06-22, 19:24:53
Are you sure it's disappeared, because i still  can clearly see it in your last attachement.
Title: Re: Shading error
Post by: dj_buckley on 2021-06-22, 20:04:54
I'm having these strange artifacts on some of my renderings, any one has encounter this ?
Any clue how to solve it ? not all renderings have this behavior on the same file, no clue what's going on..
Hi,

Which camera view is this in your scene? I am not able to find these objects..

Thanks,

Rowan

Is this actively being worked on and investigated?  I remember raising this issue over a year ago, and then again in November.  At the minute it's just another new feature that doesn't quite work.  I now leave it turned off.  In a live production environment it's too hit and miss to chance it and leave a render going only to come back and discover it's got these issues, because there's no guidance on specific setups where we might encounter it.  It's just a case of press render and hope the render doesn't have artifacts when you come back to it.  Safer to just leave it off permanently imo until it's fixed.
Hi,

Yes it is being looked into, unfortunately it is a really difficult thing to fix which is why it is taking so long.

Thanks

No worries.  Are we safe to assume it's generally when the environment reflection overrides are in use?
Title: Re: Shading error
Post by: arqrenderz on 2021-06-23, 16:38:37
Are you sure it's disappeared, because i still  can clearly see it in your last attachement.
That attached picture was when it was happening, it was to show where the bug was happening in the scene i upload to Corona