Chaos Corona 12 for 3ds Max - Daily Builds Discussion

[rowmanns]

Chaos Corona 12 for 3ds Max Daily Builds Discussion

You can grab the latest build from: Daily Builds Changelog

[romullus]

Something's wrong with colour picker in December 13 build, the swatches are not keeping their colour and overall are acting weird. Also there's that annoying half-checkered thing, but that issue started to happen few weeks earlier, not sure if it's Corona's fault or bug in 3ds Max 2024.2 update.

[maru]

Thanks for the report! We are aware of both things and investigating.

Fun fact: the "transparency" part of the color swatch is expected in some cases. For example, if you create an Autodesk Physical Material and change its diffuse color - you will see that the Corona Color Picker allows setting alpha there. But it should not appear in all color swatches. The fix for this is usually collapsing and expanding the material editor rollout again. So it looks like a UI glitch.

The swatch glitch - (Internal ID=1262704903)
Corona Color Picker stuttering/jumping colors - (Internal ID=1268112830)

There is also picker always sampling black when using multiple monitors - (Internal ID=886677936)

[romullus]

Does anybody else experience crashes when using VFB history in Corona 11 and 12? Crashes happens without 3ds max error message and does not generate minidump. Could be scene specific, since it happened to me several times when working with certain scene.

[maru]

I am not aware of this. What exactly do those crashes look like? Is it 3ds Max disappearing completely so that you don't even have time to capture a minidump?

[romullus]

It happens when i want to do VFB history AB comparison - try to grab and move divider, but Max freezes for a few seconds and then disappears without a trace. Doesn't happen always, or even too often, but i had few such occasions in V11 which i don't recall to be happening in older versions at all. I don't do any rendering lately, but if it happens next time, i'll try to figure out if it's reproducible and if i can provide you with the scene to investigate.

[maru]

I did not manage to crash it, even in a non-teapot scene ;) , when rendering in various resolutions, IR and production render. If you figure out reproduction steps, please let us know.

[Frood]

even in a non-teapot scene ;)

Don't use such scenes, you may encounter bugs ;]


Good Luck

[romullus]

Found another colour picker related bug in Dec 13 build - IR is constantly refreshing when one is adjusting tint colour in Corona colour correct texmap.

[maru]

Found another colour picker related bug in Dec 13 build - IR is constantly refreshing when one is adjusting tint colour in Corona colour correct texmap.

Thanks, confirmed also in 11 release.

(Internal ID=1274577117)

[aaouviz]

Hi,

Every time I open a scene (on both PC's) I get the out of core error pop.

Disabling it, or resetting it seems to do nothing.

See attached for details. Max 2024.2, Windows 10. Daily build C12 Dec 13.

[romullus]

I don't get that error, but i noticed that even disabling out of core, does not completely prevents Corona from temporarily writing to the disk some OOC related stuff, which is quite upsetting TBH.

[aaouviz]

TBH, This out of core has been nothing but a headache since day one of its arrival.

I don't use it. I don't want to use it. But it still causes crashes, often, and now this annoyingness too.

[arqrenderz]

We do use it, Corona is NOT good managing the ram, we have 128gb in all systems and we Need to use it on various scenes in order to render, but the pulze plugin can interfere with the paths.

[rowmanns]

Hi,

Every time I open a scene (on both PC's) I get the out of core error pop.

Disabling it, or resetting it seems to do nothing.

See attached for details. Max 2024.2, Windows 10. Daily build C12 Dec 13.

Hey,

I bet this is really frustrating. I have tried numerous times to reproduce this here, and I have failed every time. Can you provide a list of every plugin you are using and if you are using any render managers?

Cheers,

Rowan

[aaouviz]

Hi,

Every time I open a scene (on both PC's) I get the out of core error pop.

Disabling it, or resetting it seems to do nothing.

See attached for details. Max 2024.2, Windows 10. Daily build C12 Dec 13.

Hey,

I bet this is really frustrating. I have tried numerous times to reproduce this here, and I have failed every time. Can you provide a list of every plugin you are using and if you are using any render managers?

Cheers,

Rowan

Yes, I am using Pulze SM. (Ad RM).

Apart from that it's just Phoenix, I think?

I think one issue is that I cloned my PC... then on the clone changed the user and PC names. It's searching on my old user folder.

However, this only started happening when I upgraded to C12. It worked fine for 1-2 months on C11.

[aaouviz]

I've been playing around with the displacement lister today for the first time.

First thing, it seems quite buggy. If I rename one of the materials that has displacement while the lister is open, it seems to crash. Also if I open the lister, close it, then rename a material and re-open the lister. This is happening in a very heavy file though, so might be hard to replicate.

Second thing; it's a bit strange that displacement has an on/off toggle in the lister, but not in the material settings? Is there not a way to turn off a displacement on a material any other way than the lister? Edit: Ah, I see it's toggle is in the maps list at the bottom of the material properties. Maybe this should also be in the displacement settings area of the material?

[aaouviz]

Apologies, I think I might have possibly led you on the wrong track!

Although this did start with C12 installation, it is also possible that it's Pulze SM causing the out-of-core file location to reset every time I load a Pulze scene. I think perhaps the settings override might have this saved, hence it defaults back to an invalid drive every time.

Worth checking out anyway.

[shortcirkuit]

hey guys is there something wrong with corona lately?  there are certain scenes where the suns position seems to change everytime i re-open the scene?  currently on corona 11

[romullus]

This and some other issues has been fixed in Corona 11 HF1: https://forum.corona-renderer.com/index.php?topic=41809.0

[shortcirkuit]

thx mate

[nagboy]

Small bug in Corona Decal.

In the object include/exclude.

If an object is included to receive the decal. Any object you link in a child/parent relationship to that object will also be included to receive the decal. Highly doubt this is an intended behavior.
 

[pokoy]

Small bug in Corona Decal.

In the object include/exclude.

If an object is included to receive the decal. Any object you link in a child/parent relationship to that object will also be included to receive the decal. Highly doubt this is an intended behavior.

Generally, this behavior has to be optional as it's found everywhere in Corona (for example in mask render elements). Please devs, make it an optional per-case thing, it's really problematic in scenes where you just can not change hierarchies, for example in animations. It's a nice feature if you really need it but a real headache if you don't.

[aaouviz]

Not sure if I was experiencing a bug, or if it's a known limitation...but

Today I had a multi-map material with a CoronaLightMtl plugged into one of the slots.

The light worked, but it didn't emit onto itself (ie; the other materials in the same object).

I don't think this is new behavior...?

Will try to replicate if I find time.

Corona 12 Daily Dec 13. Max 2024.2

[shortcirkuit]

Hi team

i got this error on new daily

[Aram Avetisyan]

Hi team

i got this error on new daily

Hi,

It can be caused by various Scatter version installations. From what I observed, it is fine to OK it.
Do you see any unexpected behavior or so in regards to Chaos Scatter after this?

[cgiout]

Hi team

i got this error on new daily

Had the same error ommediately after installing the 29th daily. So then i installed the previous one and then installed again the latest and the message gone, but the scatter toolbar buttons are gone too.

[Aram Avetisyan]

Small bug in Corona Decal.

In the object include/exclude.

If an object is included to receive the decal. Any object you link in a child/parent relationship to that object will also be included to receive the decal. Highly doubt this is an intended behavior.

Generally, this behavior has to be optional as it's found everywhere in Corona (for example in mask render elements). Please devs, make it an optional per-case thing, it's really problematic in scenes where you just can not change hierarchies, for example in animations. It's a nice feature if you really need it but a real headache if you don't.

Decals to not affect the children of included/excluded objects is not reported. It is requested to be as an option.

(Internal ID=1298173053)

[michaltimko]

Hi team

i got this error on new daily

Had the same error ommediately after installing the 29th daily. So then i installed the previous one and then installed again the latest and the message gone, but the scatter toolbar buttons are gone too.

Same error regarding permissions , scatter icons are gone as well and relink bitmaps script now doesnt work until i run 3ds max as administrator.

[cgiout]

Hi team

i got this error on new daily

Had the same error ommediately after installing the 29th daily. So then i installed the previous one and then installed again the latest and the message gone, but the scatter toolbar buttons are gone too.

Just noticed right now that vrscans materials don't render correctly, sometimes objects appear as transparent or semi transparent...

[maru]

Just noticed right now that vrscans materials don't render correctly, sometimes objects appear as transparent or semi transparent...

Can you share which exact Scans are rendering incorrectly?

[cgiout]

Hi, the vrscan called rca96517.vrscan which is a carbon, renders semi transparent. Carbon stripes render solid but the rest is completely transparent.
While another carbon called carbon.vrscan renders completely correctly.

[maru]

Hi, the vrscan called rca96517.vrscan which is a carbon, renders semi transparent. Carbon stripes render solid but the rest is completely transparent.
While another carbon called carbon.vrscan renders completely correctly.

The material rca96517 does not render transparent for me. In the attached scene, I placed a rectangular light behind the teapot and it appears fully opaque.
Please provide exact reproduction steps.

[cgiout]

Hi, the vrscan called rca96517.vrscan which is a carbon, renders semi transparent. Carbon stripes render solid but the rest is completely transparent.
While another carbon called carbon.vrscan renders completely correctly.

The material rca96517 does not render transparent for me. In the attached scene, I placed a rectangular light behind the teapot and it appears fully opaque.
Please provide exact reproduction steps.

Hi Maru, here you can see what's happening. Sorry i reported the wrong vrscan. It was the ccx3300. I tested it in a clean scene and the problem doesn't happen. The scene that has the issue is very heavy and memory consuming so maybe a RAM saturation issue?

[maru]

I can't reproduce it. Which exact version of Corona are you using? Could you send us any scene where this happens? (it can be just one object with the problematic material)

[pokoy]

I have no idea how Scan Mtl works but maybe they need correct face normal orientation due to the nature of the data (it comes with captured normal info)? In other words, could it be that normals are flipped on that geometry...?

[cgiout]

I can't reproduce it. Which exact version of Corona are you using? Could you send us any scene where this happens? (it can be just one object with the problematic material)

I'm running Corona version: 12 (Daily Build Jan 29 2024)
Full-speed, Non-debug, MaxSDK 2024

I tried to isolate the object and it renders correctly but unhiding all the things the issue happens again.
I don't think it's a normal issue since with other mats it works.

[maru]

@cgiout I have create a support ticket #216163 for you - you should receive an email notification

[VASLAVO]

Creating or selecting a corona camera crashes 3dsmax 2024 with daily march 5

[TomG]

Creating or selecting a corona camera crashes 3dsmax 2024 with daily march 5

"Create Corona Camera from view" works, but I can confirm that using the "Create Corona Camera" from the toolbar does indeed cause a crash, even in my basic starter scene. BTW with crashes minidumps are always useful, info on how to find it is here https://support.chaos.com/hc/en-us/articles/4649117083409-How-to-report-issues-3ds-Max

[scionik]

Creating or selecting a corona camera crashes 3dsmax 2024 with daily march 5

the same!

[maru]

The camera crash is now reported.

(Report ID=CMAX-838)

[CharlyRT]

With the recent Build (chaos-corona-12-3dsmax-daily-2024-03-05.exe) theres something strange with Scatter toolbar

[TomG]

Ah the new ultimate in minimalist interfaces! We figured everyone had it all memorized by now so that you could just use it like  touch typing.... just kidding, there is a bug here (for me the toolbar becomes text and not icons), ought to be a fix in the next daily.

[teamwhd]

I installed corona 12 in max 2023 and its crashing even in empty scene when I want to create corona camera or try to select corona camera to change parametres...........does anybody have same issue???

[maru]

I installed corona 12 in max 2023 and its crashing even in empty scene when I want to create corona camera or try to select corona camera to change parametres...........does anybody have same issue???

This was discussed a few messages above and it is reported.

[teamwhd]

sorry :-) I am blind and did not see forum pages button, so I chcecked only firts page :-)

[effendi_pl]

Hi, I have installed the latest Corona beta. Every time I add a camera (CoronaCam) to a scene, or try to modify its settings, I get an error message about the application closing it. The problem does not occur when using the vray camera.

[maru]

Hi, I have installed the latest Corona beta. Every time I add a camera (CoronaCam) to a scene, or try to modify its settings, I get an error message about the application closing it. The problem does not occur when using the vray camera.

Please see:

I installed corona 12 in max 2023 and its crashing even in empty scene when I want to create corona camera or try to select corona camera to change parametres...........does anybody have same issue???

This was discussed a few messages above and it is reported.

:)

[aaouviz]

Hi, I have installed the latest Corona beta. Every time I add a camera (CoronaCam) to a scene, or try to modify its settings, I get an error message about the application closing it. The problem does not occur when using the vray camera.

This is a horrible bug. I've had to revert to another daily. Will we be seeing an update any time soon?

[maru]

That's the typical risk of using daily builds. And yes, it will be fixed in the upcoming version.

[maru]

I have moved the request for Chinese version of Corona to Feature Requests: https://forum.corona-renderer.com/index.php?topic=42344.0
Please note that this thread is for discussing the newest daily build of Corona. If you have any feature requests, bug reports, or anything else - please use the dedicated forum sections for this. Thank you.

[scionik]

No daily builds... even an update for 2025? what's going on?

[TomG]

Preparing the 11 HF2 with 2025 compatibility is what is going on :) Should be out on Wed if all goes well (as in, actually out, not daily builds out).

[scionik]

Preparing the 11 HF2 with 2025 compatibility is what is going on :) Should be out on Wed if all goes well (as in, actually out, not daily builds out).

Great, Thank you Tom :)

[TomG]

Ah unfortunately, things did not go to plan, some issues were uncovered, and the HF2 will now be out next Monday (if all goes to plan...). Sorry for the extra few days' wait!

[scionik]

Thank you, Tom, for information. It's good to know something than nothing :)

[shortcirkuit]

i dont know whats happening today but everytime i create a corona camera, it crashes the scene!  latest daily.

[romullus]

@shortcirkuit, it's a known issue with the latest daily build. Have been discussed just a couple messages above yours.

[RecentSpacesSam]

Perhaps a warning could be added to the daily builds thread stating that there is an issue with cameras?

[maru]

Good idea! On it!
Done: link

[RecentSpacesSam]

Nice one, cheers Marcin!

[shortcirkuit]

thanks all - however now that i revert back to the HOTFIX, it still crashes - but not when i select camera - after or during a render now.

Is there some diagnostic tool i can view or file dump to see where and what is causing?

[maru]

thanks all - however now that i revert back to the HOTFIX, it still crashes - but not when i select camera - after or during a render now.

Is there some diagnostic tool i can view or file dump to see where and what is causing?

Did you save a file with a Corona 12 daily build and then load it in Corona 11? Sorry, but that won't work.
You can capture a minidump and send it to us for analysis, but if what I wrote above is your scenario, then there is nothing we could fix: https://support.chaos.com/hc/en-us/articles/4649117083409-How-to-report-issues-3ds-Max

[shortcirkuit]

hey mate - i reverted to a previous scene, imported models that i did make within the daily, and it still crashes?  not sure what to do?
i did submit a ticket - if you could please review?

thanks all - however now that i revert back to the HOTFIX, it still crashes - but not when i select camera - after or during a render now.

Is there some diagnostic tool i can view or file dump to see where and what is causing?

Did you save a file with a Corona 12 daily build and then load it in Corona 11? Sorry, but that won't work.
You can capture a minidump and send it to us for analysis, but if what I wrote above is your scenario, then there is nothing we could fix: https://support.chaos.com/hc/en-us/articles/4649117083409-How-to-report-issues-3ds-Max

[maru]

Thanks, I will check it ASAP.
(note to self: #231699)

[shortcirkuit]

thanks so much

Thanks, I will check it ASAP.
(note to self: #231699)

[maru]

The crash was caused by the 3ds Max Chamfer modifier and, according to our investigation, was not related to Corona at all.

[shortcirkuit]

hi team - im still getting that issue when in IR mode, the IR keeps in this motion UNTIL i click off screen (ie another window program) and then IR resumes.  It seems to be with forest pack objects.

[arqrenderz]

had these a bunch of times, you can hover your mouse over the 3dsmax interface, just not on the viewports for it to restart

[shortcirkuit]

yeah i know thanks - but we shouldnt have to!  its been an ongong issue thats been here before and im not sure what exactly causes it - could it be forest pack?

had these a bunch of times, you can hover your mouse over the 3dsmax interface, just not on the viewports for it to restart

[maru]

hi team - im still getting that issue when in IR mode, the IR keeps in this motion UNTIL i click off screen (ie another window program) and then IR resumes.  It seems to be with forest pack objects.

Hi, which version of 3ds Max are you using? I am asking this question because we had some similar reports in the past and it always happened with 3ds Max 2022. If you are using this version, one solution would be to update to a newer one.
Also, did it start happening only after you installed a daily build? It never happens with Corona 11 HF2?
Other than that, I can only recommend submitting a new support ticket and sharing the scene with us: https://support.chaos.com/hc/en-us/requests/new

[shortcirkuit]

hey mate - im using max 24 with the last official corona release.

hi team - im still getting that issue when in IR mode, the IR keeps in this motion UNTIL i click off screen (ie another window program) and then IR resumes.  It seems to be with forest pack objects.

Hi, which version of 3ds Max are you using? I am asking this question because we had some similar reports in the past and it always happened with 3ds Max 2022. If you are using this version, one solution would be to update to a newer one.
Also, did it start happening only after you installed a daily build? It never happens with Corona 11 HF2?
Other than that, I can only recommend submitting a new support ticket and sharing the scene with us: https://support.chaos.com/hc/en-us/requests/new

[maru]

This is a daily build discussion thread. Please only post bugs/feature requests/questions/suggestions related to the daily builds.

[Nekrobul]

Woha that's been quet a while since i have been here.

But i am here for a reason, i saw on the road map future Chaos Vantage implementation, so the question is:

Does this current v12 daily build supports vantage or not and we have to wait a bit? If it does i will be able to test it out on insanely huge golf scenes.

Also question is if it will be implemented soon will it have any texture\material\feature limitations, for example such as corona pattern?

[maru]

Hi, it is not yet available in the daily builds. Tom shared some insights here: https://forum.corona-renderer.com/index.php?topic=42118.msg222299#msg222299
Basically, the initial support will be most likely limited (no live link). I am not sure about specific limitations like materials or modifiers. Perhaps Tom can shed some more light on this. :)

[Nekrobul]

Great! Thanks for the info.

Sad that it is not yet available to test, i am very tempted to try it out =D

But anyway i will be glad to provide some feedback when it will be implemented to test builds.

[TomG]

There will indeed be limitations, same as there are limitations from V-Ray to Vantage, e.g. see here : https://docs.chaos.com/display/LAV/3ds+Max

As a general guide, if it doesn't work for V-Ray, we can expect it not to work for Corona too, and given this is an initial implementation, there may be extra restrictions or limitations for Corona.

And as noted, yes, no live link in Corona 12, this will be revisited after the release of 12 to see what is possible.

[arqrenderz]

Any updates form the trello board maniacs ??

[TomG]

Nope, I haven't revisited the Trello board just yet, shouldn't be any major changes there though (but will give it a checkover soon).

[shortcirkuit]

i must say, in all these years, activity around dailies has been abnormally quiet - is something going on?

[aaouviz]

i must say, in all these years, activity around dailies has been abnormally quiet - is something going on?

Agreed! Never seen such a large gap between dailies. Odd...

[scionik]

Half-yearly builds :)

[TomG]

Just lots of stuff needing doing before a daily comes out, big blocks of code that can't be released in stages; and then in combination with the last week or so being full of statutory holidays meaning things move to next week or so. On the plus side, should then mean a lot in that next update, including the first appearance of "export to Vantage" functionality.

[aaouviz]

Just lots of stuff needing doing before a daily comes out, big blocks of code that can't be released in stages; and then in combination with the last week or so being full of statutory holidays meaning things move to next week or so. On the plus side, should then mean a lot in that next update, including the first appearance of "export to Vantage" functionality.

Holy cow...

[shortcirkuit]

sounds exciting....

@devs - can i ask something, one thing that has bothered me for years and i dont know the mechanics of what goes on behind the scenes in terms of code.  But the heavier a scene gets, the more longer it takes for parsing/IR to work.  Sometimes, on repeated IR activation's, it takes over 20 seconds or so on heavier scenes.  Now, i assume its taking longer obviously due to geometry/poly count + the increase in textures etc.... if this is the case, wouldnt it be possible to pre-load these (cache) them in so that it starts quicker?  & any NEW geometry/texture additions should be calculated from scratch and loaded into cache? again, i have no idea about code and its way out of my depth but i was just wondering if it was at all possible.

Because the thing is this.  I moved to Corona many moons ago due to its ease of use.  It got rid of the technical aspect that vray had in terms of scene setup/settings.  It just works.  However, with heavier scenes, i feel as though there is a bottleneck in terms of optimisation.  Scenes get heavy and slow, IR works poorly and we are left to our own devices to figure out how to optimise.  Scenes tend to feel 'dirty' if that at all makes any sense.  Apart from what i mentioned above and ive said this before, it would be awesome to also, in the short term, provide a dignostic tool to help us understand where teh bottle necks are.  WHY the IR is taking long - is it a 320MB TIF file?  is it loading multiple proxies or a 300,000,0000 polygon item that has turbosmooth set to show only during render (which has a iteration of 5) - a diagnostic tool is somehting that i feel can be achieved relatively easy as its jsut data, data that is currently understood by Corona - we just need it transposed to meaningful and clear text to us, the users....

anyway, hope this all makes sense.

Just lots of stuff needing doing before a daily comes out, big blocks of code that can't be released in stages; and then in combination with the last week or so being full of statutory holidays meaning things move to next week or so. On the plus side, should then mean a lot in that next update, including the first appearance of "export to Vantage" functionality.

[aaouviz]

sounds exciting....

@devs - can i ask something, one thing that has bothered me for years and i dont know the mechanics of what goes on behind the scenes in terms of code.  But the heavier a scene gets, the more longer it takes for parsing/IR to work.  Sometimes, on repeated IR activation's, it takes over 20 seconds or so on heavier scenes.  Now, i assume its taking longer obviously due to geometry/poly count + the increase in textures etc.... if this is the case, wouldnt it be possible to pre-load these (cache) them in so that it starts quicker?  & any NEW geometry/texture additions should be calculated from scratch and loaded into cache? again, i have no idea about code and its way out of my depth but i was just wondering if it was at all possible.

Because the thing is this.  I moved to Corona many moons ago due to its ease of use.  It got rid of the technical aspect that vray had in terms of scene setup/settings.  It just works.  However, with heavier scenes, i feel as though there is a bottleneck in terms of optimisation.  Scenes get heavy and slow, IR works poorly and we are left to our own devices to figure out how to optimise.  Scenes tend to feel 'dirty' if that at all makes any sense.  Apart from what i mentioned above and ive said this before, it would be awesome to also, in the short term, provide a dignostic tool to help us understand where teh bottle necks are.  WHY the IR is taking long - is it a 320MB TIF file?  is it loading multiple proxies or a 300,000,0000 polygon item that has turbosmooth set to show only during render (which has a iteration of 5) - a diagnostic tool is somehting that i feel can be achieved relatively easy as its jsut data, data that is currently understood by Corona - we just need it transposed to meaningful and clear text to us, the users....

anyway, hope this all makes sense.

Just lots of stuff needing doing before a daily comes out, big blocks of code that can't be released in stages; and then in combination with the last week or so being full of statutory holidays meaning things move to next week or so. On the plus side, should then mean a lot in that next update, including the first appearance of "export to Vantage" functionality.

The new Pulze SM has an update that does a diagnostic like this. It's nothing special, but for you it might be a good start...

[shortcirkuit]

very true mate thankyou - it does help but a more indepth one would be beneficial (ie showing what is causing bottlenecks)

sounds exciting....

@devs - can i ask something, one thing that has bothered me for years and i dont know the mechanics of what goes on behind the scenes in terms of code.  But the heavier a scene gets, the more longer it takes for parsing/IR to work.  Sometimes, on repeated IR activation's, it takes over 20 seconds or so on heavier scenes.  Now, i assume its taking longer obviously due to geometry/poly count + the increase in textures etc.... if this is the case, wouldnt it be possible to pre-load these (cache) them in so that it starts quicker?  & any NEW geometry/texture additions should be calculated from scratch and loaded into cache? again, i have no idea about code and its way out of my depth but i was just wondering if it was at all possible.

Because the thing is this.  I moved to Corona many moons ago due to its ease of use.  It got rid of the technical aspect that vray had in terms of scene setup/settings.  It just works.  However, with heavier scenes, i feel as though there is a bottleneck in terms of optimisation.  Scenes get heavy and slow, IR works poorly and we are left to our own devices to figure out how to optimise.  Scenes tend to feel 'dirty' if that at all makes any sense.  Apart from what i mentioned above and ive said this before, it would be awesome to also, in the short term, provide a dignostic tool to help us understand where teh bottle necks are.  WHY the IR is taking long - is it a 320MB TIF file?  is it loading multiple proxies or a 300,000,0000 polygon item that has turbosmooth set to show only during render (which has a iteration of 5) - a diagnostic tool is somehting that i feel can be achieved relatively easy as its jsut data, data that is currently understood by Corona - we just need it transposed to meaningful and clear text to us, the users....

anyway, hope this all makes sense.

Just lots of stuff needing doing before a daily comes out, big blocks of code that can't be released in stages; and then in combination with the last week or so being full of statutory holidays meaning things move to next week or so. On the plus side, should then mean a lot in that next update, including the first appearance of "export to Vantage" functionality.

The new Pulze SM has an update that does a diagnostic like this. It's nothing special, but for you it might be a good start...

[arqrenderz]

Vray has it ! You can bump this thread for it
https://forum.corona-renderer.com/index.php?topic=41901.msg221336#msg221336

[shortcirkuit]

Done, cheers mate.

Vray has it ! You can bump this thread for it
https://forum.corona-renderer.com/index.php?topic=41901.msg221336#msg221336

[Jpjapers]

sounds exciting....

@devs - can i ask something, one thing that has bothered me for years and i dont know the mechanics of what goes on behind the scenes in terms of code.  But the heavier a scene gets, the more longer it takes for parsing/IR to work.  Sometimes, on repeated IR activation's, it takes over 20 seconds or so on heavier scenes.  Now, i assume its taking longer obviously due to geometry/poly count + the increase in textures etc.... if this is the case, wouldnt it be possible to pre-load these (cache) them in so that it starts quicker?  & any NEW geometry/texture additions should be calculated from scratch and loaded into cache? again, i have no idea about code and its way out of my depth but i was just wondering if it was at all possible.

Because the thing is this.  I moved to Corona many moons ago due to its ease of use.  It got rid of the technical aspect that vray had in terms of scene setup/settings.  It just works.  However, with heavier scenes, i feel as though there is a bottleneck in terms of optimisation.  Scenes get heavy and slow, IR works poorly and we are left to our own devices to figure out how to optimise.  Scenes tend to feel 'dirty' if that at all makes any sense.  Apart from what i mentioned above and ive said this before, it would be awesome to also, in the short term, provide a dignostic tool to help us understand where teh bottle necks are.  WHY the IR is taking long - is it a 320MB TIF file?  is it loading multiple proxies or a 300,000,0000 polygon item that has turbosmooth set to show only during render (which has a iteration of 5) - a diagnostic tool is somehting that i feel can be achieved relatively easy as its jsut data, data that is currently understood by Corona - we just need it transposed to meaningful and clear text to us, the users....

anyway, hope this all makes sense.

Just lots of stuff needing doing before a daily comes out, big blocks of code that can't be released in stages; and then in combination with the last week or so being full of statutory holidays meaning things move to next week or so. On the plus side, should then mean a lot in that next update, including the first appearance of "export to Vantage" functionality.

The new error log shows you the heaviest scene items as well as the heaviest textures but possibly only if you run low on RAM. Having this as a diagnostic feature on its own would be good but i totally agree that as clients request higher res images, and we are required to put more and more detail in both geometry and textures to support the resolution we need better ways of optimising scenes. Revit models in particular seem to take an absolute age to begin rendering and ive got no idea why.

[shortcirkuit]

Hi Devs, i tried to open a scene from 2023 - it crashed (using latest daily).  I installed latest hotfix, it opens.  Tested on 2 different scenes.

[Aram Avetisyan]

Hi Devs, i tried to open a scene from 2023 - it crashed (using latest daily).  I installed latest hotfix, it opens.  Tested on 2 different scenes.

Hi,

Please attach the scene and minidump if possible and we will have a look.
You can as well send it over with via ticket at https://support.chaos.com/hc/en-us/requests/new.

[maou42]

Hi

I am using the latest daily.

-Adjusting the colour of an element in the lightmix (the "white box" leads to a crash.
-In the compact material editor, clearing/ deleting a multimaterial leads to a crash (this have been going on for several months, not just the latest build).

Can anyone reproduce those?

Thanks.

[romullus]

Hi,

please read this article and provide minidump and/or scene if possible.

[maru]

We will try to reproduce both issues, but as Romullus said, it would be great if you could provide a minidump and/or a scene. Thanks!

[Avi]

Hi

I am using the latest daily.

-Adjusting the colour of an element in the lightmix (the "white box" leads to a crash.
-In the compact material editor, clearing/ deleting a multimaterial leads to a crash (this have been going on for several months, not just the latest build).

Can anyone reproduce those?

Thanks.

I tried to repro this but it didnt crash for me. I tested it on Corona 11 HF 2 and Corona 12 Latest DB.

Is the issue specific to a scene or you can repro the crash on a empty 3ds max scene as well?

[maru]

In that case, @maou42 please submit a new support ticket at https://support.chaos.com/hc/en-us/requests/new

[maou42]

Hi all

Sorry for the late reply.

The crash when clearing a multi-material has been happening for ages. Months, 1year plus?

The crash when changing the colour in the light mix is new.

I will open a ticket with Chaos. Will try and work out how to attach a minidump.

Thanks.

[v.p.vlasenko]

Hi, looks like each time after installing a new version folder for out-of-core textures is reset to default, can you fix it?

[mark_yang]

May I ask if using Corona12 (Daily Build Jun 7, 2024) to export. vantage, the animation camera in max cannot be synchronized

[Aram Avetisyan]

May I ask if using Corona12 (Daily Build Jun 7, 2024) to export. vantage, the animation camera in max cannot be synchronized

Hi,

Animation unfortunately will not be supported for Vantage for V12 (as of current plans), it is too much of work. The support is initial to get started with Corona-to-Vantage, and also get feedback from users.

[Alex Abarca]

That's bad news, I really needed full vantage support on this new version.

:(

[danio1011]

Exciting release, but not being able to share animated cameras from Max to Vantage is a real bummer.  That really undercuts its use as a pre-viz 'client approval' tool for animations.

[TomG]

Understood, and this was why we were sure to mention some months ago that animation from the host would not be in this release, but planned for the next version if all goes well. We wanted to be sure the information was out in advance as to what this would and would not do. Naturally, the integration is a large project, a lot of complex work, which is why it has a foundational release now with future functionality planned to be built on that.

[danio1011]

Understood, and this was why we were sure to mention some months ago that animation from the host would not be in this release, but planned for the next version if all goes well. We wanted to be sure the information was out in advance as to what this would and would not do. Naturally, the integration is a large project, a lot of complex work, which is why it has a foundational release now with future functionality planned to be built on that.

Makes sense!  I knew IR was not planned for this release (or maybe ever) but I thought animated cameras were 'depends how far we get.'  Either way, if sharing animated cameras is on the roadmap that's all that matters to me...happy to wait for such a big feature :) Would make a HUGE difference to our workflow for animations.  Thanks for the update as always, Tom.

[TomG]

Most welcome!

[i_mamun]

In latest daily build to export chaos vantage, Corona lights are not visible in chaos vantage light lister. Is that my problem or there is no feature to export corona lights to vantage as static.

[Aram Avetisyan]

In latest daily build to export chaos vantage, Corona lights are not visible in chaos vantage light lister. Is that my problem or there is no feature to export corona lights to vantage as static.

They maybe imported as mesh objects with emissive material.
Improvements to light types support into Vantage are planned.

[shakedalon]

Hey guys, really appriciate your hard work !
Really excited to see the new version and the support for Vantage.
Unfortunately, this is the result after exporting to Vantage (attached the vantage result and the corona result)

Fabrics tured out weird and floor turned out black.
Some textured got rotated like Diffuse and Bump of the same texture.

Is there a way to make the changes in Live? or its only "offline" vantage?

Thank you !

[mark_yang]

Understood, and this was why we were sure to mention some months ago that animation from the host would not be in this release, but planned for the next version if all goes well. We wanted to be sure the information was out in advance as to what this would and would not do. Naturally, the integration is a large project, a lot of complex work, which is why it has a foundational release now with future functionality planned to be built on that.

Makes sense!  I knew IR was not planned for this release (or maybe ever) but I thought animated cameras were 'depends how far we get.'  Either way, if sharing animated cameras is on the roadmap that's all that matters to me...happy to wait for such a big feature :) Would make a HUGE difference to our workflow for animations.  Thanks for the update as always, Tom.

Haha, we also urgently need the animation camera in MAX to synchronize with Chaos Vantage. In the early stage of animation production, MAX needs to output the path preview of the animation to the customer for confirmation of the script. The previous process used to be direct output in MAX. Currently, we are transitioning to a Vray scene and then outputting it through Chaos Vantage. This way, we can visually see the material of the light and the model in the path preview. Originally, we thought that Corona12 could directly use Chaos Vantage

[maru]

Hey guys, really appriciate your hard work !
Really excited to see the new version and the support for Vantage.
Unfortunately, this is the result after exporting to Vantage (attached the vantage result and the corona result)

Fabrics tured out weird and floor turned out black.
Some textured got rotated like Diffuse and Bump of the same texture.

Is there a way to make the changes in Live? or its only "offline" vantage?

Thank you !

Hi, we are interested in investigating cases like this to improve the Vantage export. Could you please contact us here by submitting a support ticket and attach your problematic scene? (with all assets using the File > Archive option): https://support.chaos.com/hc/en-us/requests/new
Thank you in advance!

[danio1011]

Haha, we also urgently need the animation camera in MAX to synchronize with Chaos Vantage. In the early stage of animation production, MAX needs to output the path preview of the animation to the customer for confirmation of the script. The previous process used to be direct output in MAX. Currently, we are transitioning to a Vray scene and then outputting it through Chaos Vantage. This way, we can visually see the material of the light and the model in the path preview. Originally, we thought that Corona12 could directly use Chaos Vantage

So you are working in Corona for the finals but doing a early-process scene convert to VRay in order to get initial approval on your scenes through Vantage?  And then I assume you bake finals in Corona still?  I've contemplated that workflow, wonder how efficient it is for you...?

[mark_yang]

Haha, we also urgently need the animation camera in MAX to synchronize with Chaos Vantage. In the early stage of animation production, MAX needs to output the path preview of the animation to the customer for confirmation of the script. The previous process used to be direct output in MAX. Currently, we are transitioning to a Vray scene and then outputting it through Chaos Vantage. This way, we can visually see the material of the light and the model in the path preview. Originally, we thought that Corona12 could directly use Chaos Vantage

So you are working in Corona for the finals but doing a early-process scene convert to VRay in order to get initial approval on your scenes through Vantage?  And then I assume you bake finals in Corona still?  I've contemplated that workflow, wonder how efficient it is for you...?

Yes, in the end, we still used Corona to produce the output. Using Vantage actually increased the customer experience, and the GPU rendered effect is always better than the preview effect generated in 3dmax. The efficiency issue you mentioned happened to have a case today. The client wants us to test the performance of the real sun position in the animation and compare it with the animation sample of the sun position that prioritizes visual effects to see which one to choose. I used Vantage and quickly produced two 90 second sample outputs in about half an hour, which were sent to the customer. If Corona can directly connect to Vantage in real-time and maintain consistent results in the future, it will greatly save us rendering time and costs
By the way, I am using a translation software, and some sentences may not be translated accurately. Please forgive me

[Dionysios.TS]

Just a simple question on Vantage support:

I've noticed that the additional outputs in Triplanar and UVW Randomizer are not compatible during the conversion in Vantage.
Do you guys have any plans to make them work?

UPDATE: Actually the Triplanar and UVW Randomizer are not supported at all. Ithought was the fault of the adiotional outputs.

Thanks in advance.

Dionysios -

[aaouviz]

Hi devs,

Something that's bugged me for a loooooong time, and remains unfixed is the color picker forgetting it's temperature.

It always defaults back to 1700, so there's no way of knowing which temperature was set.

Can this please be fixed?

Many thanks!

[maru]

Hi devs,

Something that's bugged me for a loooooong time, and remains unfixed is the color picker forgetting it's temperature.

It always defaults back to 1700, so there's no way of knowing which temperature was set.

Can this please be fixed?

Many thanks!

Hi, sorry, but there is no way to fix this. Once you set a custom temperature value and confirm, the data in the color swatch is just an RGB value with no information about the temperature.

[Alexandre Besson]

Hi,
For some DailysBuilds (3 or 4), classic render consumes all ram availlable until freeze windows 11, it occure with large ForestPacks.

Regards

[maru]

Hi,
For some DailysBuilds (3 or 4), classic render consumes all ram availlable until freeze windows 11, it occure with large ForestPacks.

Regards

Hi, this sounds like a serious issue. Please contact us here and attach any scene where this can be reproduced (archived with all assets using File > Archive): https://support.chaos.com/hc/en-us/requests/new
Thank you in advance!

[hrvojezg00]

Hi, in the RC1 changelog, there is no note on 25% speed up for dual CPU systems, while it was noted on a previous daily build. Is there 2cpu speed improvement in RC1?

[TomG]

The changelogs specify what is new in that daily (or RC), with everything from the previous changelogs still in place :)

[hrvojezg00]

Great news, thanks Tom!

[b10bulent]

Corona converter not working. It keeps giving errors ...

[maru]

Corona converter not working. It keeps giving errors ...

Hi, you can find the solution in this guide: https://support.chaos.com/hc/en-us/articles/4528127520017-I-am-getting-MAXScript-Auto-load-Script-Error

[Vasiliy]

Hi, unfortunately, when i installing the latest version (12 RC1)  for 3DsMax 2024, I receive this message, after which the max drops.
while everything is fine in 3Dsmax 2023

[maru]

Hi, unfortunately, when i installing the latest version (12 RC1)  for 3DsMax 2024, I receive this message, after which the max drops.
while everything is fine in 3Dsmax 2023

When exactly does the error appear? When starting 3ds Max, loading a specific scene, clicking some specific button?
To understand what exactly is happening here, we would need a minidump from you captured while the error message is visible. Here is how to do it: https://support.chaos.com/hc/en-us/articles/4649117083409-How-to-report-issues-3ds-Max
You can contact us about this issue and attach your minidump file here: https://support.chaos.com/hc/en-us/requests/new

[b10bulent]

Corona converter not working. It keeps giving errors ...

Hi, you can find the solution in this guide: https://support.chaos.com/hc/en-us/articles/4528127520017-I-am-getting-MAXScript-Auto-load-Script-Error

I tried this but it didn't work.

[maru]

Corona converter not working. It keeps giving errors ...

Hi, you can find the solution in this guide: https://support.chaos.com/hc/en-us/articles/4528127520017-I-am-getting-MAXScript-Auto-load-Script-Error

I tried this but it didn't work.

In that case, please contact us at https://support.chaos.com/hc/en-us/requests/new

[Elementstudio]

Hello,

Corona Team, are we going to have the 3D Studio Max resolution override in CoronaCAM similar to V-Ray?

Thanks a lot!

[TomG]

Not in Corona 12 (else it would be in there already, since we are at a Release Candidate; plus it would be on the roadmap). However, we have it down as a future improvement to work on :)

[Alex Abarca]

Hi,
Does anyone know how to use Corona Render 12 to Vantage?

[Aram Avetisyan]

If you are using the v12 RC1 or June daily build, you can go to Render settings > System > Render in Vantage.
You should obviously have Vantage installed. Remember that no animation is supported yet, some maps and materials may not get exported one-to-one.

[michaltimko]

Just curious - anything changed between RC1 VFB and previous daily ? On 3990WX, VFB was always laggy/unresponsive, especially when zooming in, moving around the image at higher resolutions etc.

VFB 2.0 (previous daily) solved that for me, it was super snappy and responsive. Installed RC1 yesterday and VFB feels thesame like always did. Zooming in or out takes sometime 2-4s. Panning inside the image at 100% zoom is laggy and whole max freezes.

[Alex Abarca]

Hi Corona team,
It seems very slow and buggy. I got an error message when I pressed the button. My file is very clean and mainly composed of proxy library objects.

[TomG]

Does it work with say a simple cube? Just to check, do you have Vantage installed? And last, which of the various buttons did you press, since there are 3 you could use :) Actually, also - what seems slow? The buggy I get, from this error message, but not sure what you mean when you say things are slow - the export is slow?

[maru]

Just curious - anything changed between RC1 VFB and previous daily ? On 3990WX, VFB was always laggy/unresponsive, especially when zooming in, moving around the image at higher resolutions etc.

VFB 2.0 (previous daily) solved that for me, it was super snappy and responsive. Installed RC1 yesterday and VFB feels thesame like always did. Zooming in or out takes sometime 2-4s. Panning inside the image at 100% zoom is laggy and whole max freezes.

I was not able to reproduce it, definitely no 2-4s freezes and no Max freezing. Maybe it's scene-dependent? Could you share a scene with us (archived with all assets) here: https://support.chaos.com/hc/en-us/requests/new

[brr]

Hello Corona Renderer team,

In the latest changelog of v12RC2, there is a bug fix for Scatter mentioned:
"Fixed issue with missing icons in Max 2025."

Is this fix only for Max 2025, or are previous versions also affected? I had this bug in Max 2022 and 2024.

Thanks in advance

[Gloria]

In version v12RC2, I can't use it
Sample scripts available in MaxScript
CoronaRenderer.CoronaFp.exportScene @"C:\Corona\myscene.scn"
I want to export the scene through the script, but it seems impossible to achieve

[maru]

In version v12RC2, I can't use it
Sample scripts available in MaxScript
CoronaRenderer.CoronaFp.exportScene @"C:\Corona\myscene.scn"
I want to export the scene through the script, but it seems impossible to achieve

Hi, can you explain what exactly you would like to achieve? Export a scene to Corona Standalone? Or Vantage? Or maybe something else?

[Frood]

Just checked, it's broken. And it has been already broken in RC1. It is just about the standalone (Edit: and vantage) export function of the Corona interface. A correct call (with all needed parameters) would be for example

Code: [Select]

CoronaRenderer.CoronaFp.exportScene @"C:\Corona\myscene.cdo" 0

All you get since RC1 is

Code: [Select]

-- MAXScript Listener Eval Exception:
-- Unknown system exception
-- MAXScript callstack:
-- thread data: threadID:10096
-- ------------------------------------------------------
-- [stack level: 0]
-- In top-level


I think adding that vantage button broke it. Daily 0706 did it correctly.


Good Luck

[Gloria]

In version v12RC2, I can't use it
Sample scripts available in MaxScript
CoronaRenderer.CoronaFp.exportScene @"C:\Corona\myscene.scn"
I want to export the scene through the script, but it seems impossible to achieve

Hi, can you explain what exactly you would like to achieve? Export a scene to Corona Standalone? Or Vantage? Or maybe something else?

Yes, I would like to be able to export to vantage through the export function, and script a button, just like Vantage's toolbar in max
If you need to modify the scene, you can use this button to refresh the export and reload the scene in vantage

[Avi]

Just checked, it's broken. And it has been already broken in RC1. It is just about the standalone (Edit: and vantage) export function of the Corona interface. A correct call (with all needed parameters) would be for example

Code: [Select]

CoronaRenderer.CoronaFp.exportScene @"C:\Corona\myscene.cdo" 0

All you get since RC1 is

Code: [Select]

-- MAXScript Listener Eval Exception:
-- Unknown system exception
-- MAXScript callstack:
-- thread data: threadID:10096
-- ------------------------------------------------------
-- [stack level: 0]
-- In top-level


I think adding that vantage button broke it. Daily 0706 did it correctly.


Good Luck

I was able to repro this issue and have logged it in our system for our devs to review. Thank you for reporting this.

(Report ID=CMAX-1114)

[i_mamun]

Most of the corona and Native 3ds Maps are not supporting in Vantage. Like Tile Map, Color Correction, Corona tile map.
Even Material Texture and color not accurate on vantage like on 3ds Max corona renderer .

[Aram Avetisyan]

Hello Corona Renderer team,

In the latest changelog of v12RC2, there is a bug fix for Scatter mentioned:
"Fixed issue with missing icons in Max 2025."

Is this fix only for Max 2025, or are previous versions also affected? I had this bug in Max 2022 and 2024.

Thanks in advance

Hi, the fix should affect 3ds Max 2024 too, and may affect earlier versions. Feel free to test and report back.

[Ait Ouarab]

Hello everyone,

Tried corona renderer 12 and since the release of 07-06-2024 and for both RC (1&2), I found out that the Intel denoiser isn't working as it had to in the previous versions (even for corona renderer 12 pre-releases). The result is kind of blochy and isn't acceptable at all. Even Nvidia AI denoiser, which is a fast preview denoiser, is giving more interesting results than the Intel one, nonetheless it is a fast preview one and can't be effective.
I send your two tests one with version 11 and the blochy one with version 12. I've made other tests on other scenes to avoid any interference due to the file itself, same result.
I hope this can be resolved in future release.

Greetings.

[maru]

Hello everyone,

Tried corona renderer 12 and since the release of 07-06-2024 and for both RC (1&2), I found out that the Intel denoiser isn't working as it had to in the previous versions (even for corona renderer 12 pre-releases). The result is kind of blochy and isn't acceptable at all. Even Nvidia AI denoiser, which is a fast preview denoiser, is giving more interesting results than the Intel one, nonetheless it is a fast preview one and can't be effective.
I send your two tests one with version 11 and the blochy one with version 12. I've made other tests on other scenes to avoid any interference due to the file itself, same result.
I hope this can be resolved in future release.

Greetings.

This is confirmed and we are investigating. Thank you for reporting this!
(unrelated to the root issue, but please note that rendering just 1 pass and denoising it does not make much practical sense - most likely the base image quality will be always too low)

[Sepia21]

Hi everyone,

I've been testing Corona 12 for the past few days, and have one request, is it possible to have the Corona smiling face emoji back? It was really helpful to understand when we are rendering. Now every time I have to check if the interactive render is running or not.

Thanks in advance

[romullus]

+1 Yes please, bring the smiley back. If you think that yellow smiley is clashing with new corporate Corona philosophy, then maybe replace it with spinning Corona logo, but some sign of rendering progress would be highly appreciated.

[brr]

+1 bring please the smile back, or give an option to activate it in system settings.

[TomG]

Not removed for any reason other than rewriting to QT changes how this could be done - and unfortunately, for the release of 12 we'll have to focus on other things. But we do aim to bring it, or something as an indicator that stuff is happening, back. I see no reason why it shouldn't be as charismatic and fun as the old one was, when it does come back :)

[CharlyRT]

+1 bring please the smile back, or give an option to activate it in system settings.

Ill give a +1 to restore the progress icon, but for the love of god, dont use the smiley face, it looks really cheap, the first thing that came in my mind when I started using Corona was "is this a beta? Am I using a pirate version?" Instead you could use the Corona logo, it looks really cool and it could show a more professional image rather than the face.

[Sepia21]

When the render regions function is activated and the selected region starts from the edges of the image, we lose the option to resize the region from the edges of the image, only moving the region is possible. When this happens, the only option to resize the region is to move away the region from the edges of the image, then the option to resize the region reappears. On Corona 11 we could resize the region no matter which part of the image was in region mode.

[maru]

When the render regions function is activated and the selected region starts from the edges of the image, we lose the option to resize the region from the edges of the image, only moving the region is possible. When this happens, the only option to resize the region is to move away the region from the edges of the image, then the option to resize the region reappears. On Corona 11 we could resize the region no matter which part of the image was in region mode.

Thanks! This is now reproduced and logged as (Report ID=CMAX-1127).

[filippo.previtali]

Hopefully, this hasn't been reported yet.
Since I moved to RC12 I have a Corona material with a multimap connected to diffuse and set to work on MatID....then another Multimap set to mesh element in order to randomiza each different ID. Well, everytime I reload the scene....most of the nodes are disconnected from the second multimap.
Hopefully the image will help to understand.

Anyone else the same issue?

Thanks a lot!

[maru]

Hopefully, this hasn't been reported yet.
Since I moved to RC12 I have a Corona material with a multimap connected to diffuse and set to work on MatID....then another Multimap set to mesh element in order to randomiza each different ID. Well, everytime I reload the scene....most of the nodes are disconnected from the second multimap.
Hopefully the image will help to understand.

Anyone else the same issue?

Thanks a lot!

We do have it reported as (Report ID=CMAX-1048), but thanks a lot for reporting anyway! Better safe than sorry!

[dj_buckley]

Hello everyone,

Tried corona renderer 12 and since the release of 07-06-2024 and for both RC (1&2), I found out that the Intel denoiser isn't working as it had to in the previous versions (even for corona renderer 12 pre-releases). The result is kind of blochy and isn't acceptable at all. Even Nvidia AI denoiser, which is a fast preview denoiser, is giving more interesting results than the Intel one, nonetheless it is a fast preview one and can't be effective.
I send your two tests one with version 11 and the blochy one with version 12. I've made other tests on other scenes to avoid any interference due to the file itself, same result.
I hope this can be resolved in future release.

Greetings.

This is confirmed and we are investigating. Thank you for reporting this!
(unrelated to the root issue, but please note that rendering just 1 pass and denoising it does not make much practical sense - most likely the base image quality will be always too low)

Did this get fixed for the final release?

[maru]

Hello everyone,

Tried corona renderer 12 and since the release of 07-06-2024 and for both RC (1&2), I found out that the Intel denoiser isn't working as it had to in the previous versions (even for corona renderer 12 pre-releases). The result is kind of blochy and isn't acceptable at all. Even Nvidia AI denoiser, which is a fast preview denoiser, is giving more interesting results than the Intel one, nonetheless it is a fast preview one and can't be effective.
I send your two tests one with version 11 and the blochy one with version 12. I've made other tests on other scenes to avoid any interference due to the file itself, same result.
I hope this can be resolved in future release.

Greetings.

This is confirmed and we are investigating. Thank you for reporting this!
(unrelated to the root issue, but please note that rendering just 1 pass and denoising it does not make much practical sense - most likely the base image quality will be always too low)

Did this get fixed for the final release?

Yes, it did!

[dj_buckley]

Perfect thanks Maru

[romullus]

I think it's worth to check this explicitly - i got strange artifacts in IR with Intel denoiser, but they went away when i switched back to Nvidia.

[brr]

Hello Corona Renderer Team,

I just watched "Real-time ray tracing with Corona for 3ds Max and Chaos Vantage" on YouTube and have one question:
Do you integrate Corona with Vantage only from your side, or is the work being done from both directions, including Vantage? I mean, when Corona 12 exports the scene to Vantage, does it convert the scene to V-Ray "under the hood," or has Vantage itself been modified to read all the Corona-related shaders, lights, etc.?
I have tried to search under Vantage changelog something about corona, but without any result :https://docs.chaos.com/display/LAV/What%27s+New

best regards

[Aram Avetisyan]

I think it's worth to check this explicitly - i got strange artifacts in IR with Intel denoiser, but they went away when i switched back to Nvidia.

Breifly checked on a production scene - Intel GPU Ai seemed working all fine.

[TomG]

All work on our side. No changes were required on the Vantage side. For exporting to .vrscene, it is on the exporting application to convert it to .vrscene format (same is true for V-Ray). Vantage then reads that .vrscene and does not to convert or interpret anything as it's already in the compatible .vrscene format.

Hello Corona Renderer Team,

I just watched "Real-time ray tracing with Corona for 3ds Max and Chaos Vantage" on YouTube and have one question:
Do you integrate Corona with Vantage only from your side, or is the work being done from both directions, including Vantage? I mean, when Corona 12 exports the scene to Vantage, does it convert the scene to V-Ray "under the hood," or has Vantage itself been modified to read all the Corona-related shaders, lights, etc.?
I have tried to search under Vantage changelog something about corona, but without any result :https://docs.chaos.com/display/LAV/What%27s+New

best regards

[b10bulent]

It uses all the RAM on the computer and the file is constantly closing. especially during interactive rendering. This version annoys me so much. Do you have any solution suggestions? My computer has 128 GB RAM.

In all the scenes I made with Corona 11, it crashes and does not even render. 3dsmax gives error.   A solution is needed very urgently.

[Sepia21]

I also have encountered this issue multiple times, everything is working normally but suddenly when I start interactive, it uses all the RAM, and Max crashes. I have to remember to save before starting the interactive every time.

[Alexandre Besson]

Same issue

[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.

[danio1011]

I am getting a crash in 12 when I move around decals with IR running.  Max 2025.  Anyone else seeing this?  I was able to move it around without a crash at first, but then I did a 'shift drag' of the decal to duplicate it and since then that decal has been crashing when moved during IR.  I even tried deleting the duplicate\instanced decal and IR still crashes. 

If you can't easily replicate this I can share a scene.

Thanks,
Dan

[Aram Avetisyan]

I am getting a crash in 12 when I move around decals with IR running.  Max 2025.  Anyone else seeing this?  I was able to move it around without a crash at first, but then I did a 'shift drag' of the decal to duplicate it and since then that decal has been crashing when moved during IR.  I even tried deleting the duplicate\instanced decal and IR still crashes. 

If you can't easily replicate this I can share a scene.

Thanks,
Dan

Hi,

A scene will be appreciated. Feel free to send it over by submitting a new ticket here: https://support.chaos.com/hc/en-us/requests/new

[Abdullah_Alallah]

Hello there, im getting a weird bug on almost all of my scenes. the render would go smoothly and run normally then all of a sudden I would get a ram implosion where 3ds max will chug through all of my 128gb of ram and the whole system gets to be in a shock kind of state till I turn off 3dsmax, it happened on 4-5 scenes now with no reason to chug the memory at all, no forest pack or anything either.

[maru]

Hello there, im getting a weird bug on almost all of my scenes. the render would go smoothly and run normally then all of a sudden I would get a ram implosion where 3ds max will chug through all of my 128gb of ram and the whole system gets to be in a shock kind of state till I turn off 3dsmax, it happened on 4-5 scenes now with no reason to chug the memory at all, no forest pack or anything either.

Could you please contact us here and attach a sample scene where the issue can be reproduced? https://support.chaos.com/hc/en-us/requests/new
We are currently looking into similar user-submitted issues, however we are not able to reproduce it so far - https://forum.corona-renderer.com/index.php?topic=43118.0

[Abdullah_Alallah]

Hello there, im getting a weird bug on almost all of my scenes. the render would go smoothly and run normally then all of a sudden I would get a ram implosion where 3ds max will chug through all of my 128gb of ram and the whole system gets to be in a shock kind of state till I turn off 3dsmax, it happened on 4-5 scenes now with no reason to chug the memory at all, no forest pack or anything either.

Could you please contact us here and attach a sample scene where the issue can be reproduced? https://support.chaos.com/hc/en-us/requests/new
We are currently looking into similar user-submitted issues, however we are not able to reproduce it so far - https://forum.corona-renderer.com/index.php?topic=43118.0

the thing is its unpredictable, the scene would work perfectly once I restart max and would work normally, although I realised that turning (conserve memory) option in the performance tab would fix it although a bit slow its a lot more reliable, is there a way to change the limit how much memory to conserve in the system? so I can manually set it to use 100gb instead of 128 and choking the PC

[maru]

It doesn't work like that. The "Conserve Memory" option is a special switch inside the Embree libraries which Corona uses to speed up rendering. So you gain some RAM at the cost of rendering speed, but it is not something you can customize or set in 3ds Max / Corona at all.

[Abdullah_Alallah]

It doesn't work like that. The "Conserve Memory" option is a special switch inside the Embree libraries which Corona uses to speed up rendering. So you gain some RAM at the cost of rendering speed, but it is not something you can customize or set in 3ds Max / Corona at all.

Then could that be where the problem resides? as once turning that option on its stable again.

[maru]

How much RAM do you have and what is your RAM usage during rendering? Is it possible that you are simply running out of RAM because of scene complexity? That's why I requested a scene. :)

[Abdullah_Alallah]

How much RAM do you have and what is your RAM usage during rendering? Is it possible that you are simply running out of RAM because of scene complexity? That's why I requested a scene. :)

I have 128 GB and the scene is far from complex XD, will be sharing a file to better understand this but my usage usually hovers around 90-95% during the usual rendering session.

[maru]

In case of 90-95% RAM usage, slowdowns/freezes/crashes could be definitely caused by not enough RAM. Even if it's not 100%, it may not be enough for the system to operate normally.
Here is some further read:
https://forum.corona-renderer.com/index.php?topic=17892.0

Q5: Why do applications slow down even when the task manager shows memory not being 100% used?
The reported memory usage is actually a small lie. System usually uses the free memory for data caching.

Whenever an application writes data to the hard-disk, the operating system just stores this data in RAM and then proceeds to actually write the data to the disk later so the application can immediately continue without waiting for the write to complete.

Later versions of Windows also try to detect the most used applications and preload them into memory so that they can start much faster.

All this cached data is usually not included in the task manager as used memory, but still must be accounted for when checking the memory usage for performance reasons because if an application requests additional memory, the system must first free it by writing the cached data on the hard-disk.

[dj_buckley]

How much RAM do you have and what is your RAM usage during rendering? Is it possible that you are simply running out of RAM because of scene complexity? That's why I requested a scene. :)

I have 128 GB and the scene is far from complex XD, will be sharing a file to better understand this but my usage usually hovers around 90-95% during the usual rendering session.

This is the same for me - my scene was far from complex, i have 192GB and the scene i was working in when it happened was literally a few boxes.  There's absolutely no way i was running out of RAM.  I'd say it was about 50 boxes, no chamfers etc (think blocking out a kitchen).  I've just checked and i've since made the scene more complex and it still only uses less than 10GB when rendering at 6k.  But when this 'leak' happened, my RAM usage shot up over the 192GB to the point my entire PC became unusable

[maru]

Unfortunately, we are unable to reproduce it so far, even using the user-submitted scenes. Just a reminder: if you ever experience it again, please contact us with the problematic scene and a short note explaining how to trigger the leak.