Chaos Corona 12 for 3ds Max - Daily Builds Discussion

[maru]

As usual, if you are encountering such issues, please contact us here with a sample scene: https://support.chaos.com/hc/en-us/requests/new
We were not able to reproduce anything like that in our tests.

[michaltimko]

Same issue , it happens all the time for me in various scenes when rendering high resolution images (5-10k) , stopping normal rendering and starting IR. Whole max will freeze, eat all the ram and hangs whole PC. 

[LorenzoS]

3ds max 2022
corona 12

-Open scene (various), start IR and max crash.
The trick i found: Open scene, start render and stop it, now if i start IR no crash.

[Aram Avetisyan]

Same issue , it happens all the time for me in various scenes when rendering high resolution images (5-10k) , stopping normal rendering and starting IR. Whole max will freeze, eat all the ram and hangs whole PC.

3ds max 2022
corona 12

-Open scene (various), start IR and max crash.
The trick i found: Open scene, start render and stop it, now if i start IR no crash.

There is a known and already fixed issue, similar to this, but it happens when IR is started after production render and being zoomed in.
If you can confirm this is the case (Start Production render, zoom in to 1:4 at least, go to right/left border of render, stop, start IR), then we already have it fixed which will be part of hotfix.

If it is something else, please try to indentify the steps leading to crash/freeze as precisely as possible. Try doing screen recordings, attach scene and minidump if possible.
Only this way we can properly identify the issue and fix it.

[LorenzoS]

update:
today I can't start rendering or IR in any way,

The trick i found: Open scene, start render and stop it, now if i start IR no crash.

not solve now.

I installed corona11 and all it's ok.

[maru]

update:
today I can't start rendering or IR in any way,

The trick i found: Open scene, start render and stop it, now if i start IR no crash.

not solve now.

I installed corona11 and all it's ok.

Hi, unfortunately we can't help with this kind of report. Please contact us here and attach a problematic scene or a part of it where you are able to reproduce the problem: https://support.chaos.com/hc/en-us/requests/new
Thanks in advance!

[sshanth]

Dear Corona Support Team,

SAME PROBLEM HERE We have been satisfied users of Corona versions 9 and 10. However, after updating to Corona 12, we have encountered numerous issues. Specifically, we are experiencing frequent fatal errors in 3ds Max, causing the program to close automatically. This problem persists when we attempt to open our previously working 3ds Max files in the new version of Corona 12, significantly affecting our production and deadlines.

We kindly request your assistance in resolving these issues to ensure smooth and efficient operation, similar to our experience with previous versions.

Thank you for your attention to this matter.

[maru]

Dear Corona Support Team,

SAME PROBLEM HERE We have been satisfied users of Corona versions 9 and 10. However, after updating to Corona 12, we have encountered numerous issues. Specifically, we are experiencing frequent fatal errors in 3ds Max, causing the program to close automatically. This problem persists when we attempt to open our previously working 3ds Max files in the new version of Corona 12, significantly affecting our production and deadlines.

We kindly request your assistance in resolving these issues to ensure smooth and efficient operation, similar to our experience with previous versions.

Thank you for your attention to this matter.

We kindly request you to contact us here and attach a problematic scene or a part of it where you are able to reproduce the problem: https://support.chaos.com/hc/en-us/requests/new
Thanks in advance!

[CharlyRT]

Dear Corona Support Team,
SAME PROBLEM HERE We have been satisfied users of Corona versions 9 and 10. However, after updating to Corona 12, we have encountered numerous issues. Specifically, we are experiencing frequent fatal errors in 3ds Max, causing the program to close automatically. This problem persists when we attempt to open our previously working 3ds Max files in the new version of Corona 12, significantly affecting our production and deadlines.

Hi Maru, Im also having a lot of crashes working with Corona 12, this have never happened before, first I tought it was from forestpack and railclone beta but all minidumps says that the problem its from CoronaMax_release-2025.dll and it happens with everything, loading an image in the VFB, editing a material, working with IPR, editing objects, etc.

Im attaching a file of one of those crashes, Ill try to upload my scene to the link provided for further analysis. Hope you can catch something.

[maru]

Thank you very much, we will definitely check your minidump and the scene itself!
For the next time: please attach both the minidump and the scene (and any other important files) to the support ticket. Thanks!

[Sepia21]

Is there a reason that every time I use interactive, I have to check the denoising option in the follow-up render? Sometimes I forget to activate denoising, and I save the render and move on to the next view, only to come back later and see my render is noisy. I have to re-render it since the denoising option was deactivated after using interactive.

[maru]

Is there a reason that every time I use interactive, I have to check the denoising option in the follow-up render? Sometimes I forget to activate denoising, and I save the render and move on to the next view, only to come back later and see my render is noisy. I have to re-render it since the denoising option was deactivated after using interactive.

Yes, the reason is a bug in Corona 12. :)
It is already fixed internally and the fix will be included in the upcoming Corona 12 Hotfix 1.
If you don't want to wait for the hotfix, you can revert to the old VFB by going to Render Setup > System > System settings and switching from "Corona VFB2" to "Corona VFB". You will need to click File > Reset in 3ds Max and then reload your scene in order for this to work (or just change renderer to any other one and then back to Corona but keep in mind that in this case you will lose any custom render settings).

[CharlyRT]

Hi, I have tested Corona 12 and I have some comments to share but I dont know where to put them.
Should I put here or as General topic?
Should I put all the Ideas in one Post or every single one in a different topic?
I ask to find out what works best for you

[Aram Avetisyan]

Hi, I have tested Corona 12 and I have some comments to share but I dont know where to put them.
Should I put here or as General topic?
Should I put all the Ideas in one Post or every single one in a different topic?
I ask to find out what works best for you

As there may be things where are already fixed or planned, and if you have many points, you can first DM me to check, or it is fine to post it here (if all are V12 related).
Just try to make the message comprehensive, easy to read/understand, with clear points.

[CharlyRT]

Thanks Aram
I think it´ll be better to DM you, like you said maibe mostly of them have been reported.