Corona 10/11 - Corona Render Assets loading very slow

Corona Corona for 3ds Max General
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+1

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As explained above, please send us a sample scene and a description of the exact problem you are having: https://support.chaos.com/hc/en-us/requests/new

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I have the same problem on 3Ds max 2023…I uninstalled it then I installed 3Ds max 2024 , corona , vray & phoenix from scratch. Keep getting the same problem…
Loading Corona assets
It sais 100% but its frozen…In task manager sais that 3Dsmax is running… I did a factory reset but nothing!!!
Any ideas???

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Can you confirm if you are using 3ds Max 2024.2 and Corona 11 HF 1?

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A user who had the same problem fixed it by reinstalling 3ds Max and all its plugins. They made sure to delete any files that were left behind.

According to user, these were the steps that he took:

  1. Uninstall 3ds Max and Plugins: Everything related to 3ds Max, and its plugins was completely uninstalled.
  2. All folders related to 3ds Max, including any residual files, were deleted.
  3. Delete the Corona Folder in Program Files.
  4. Re-install 3ds Max and Corona. (Latest version)
46

We are having extremely slow load times too in version 10.

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This is still an issue. It’s extremely frustrating to have to wait forever for our scenes to open and the only fix out there is to downgrade to corona 9. We are on newest version of Corona and max 2023. It takes around 10 seconds to save and 3:20 to open getting stuck at “loading corona assets” in the dialogue for around 2 minutes of the loading time. Some complex scenes takes more than 30 min to open and it’s the biggest frustration we have in the office, which are seriously making us consider to go back to Vray. It’s not ok that it takes more than half a year to fix an enormous issue like this.

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Hi, have you contacted us about this? I could not find any support tickets under your email address. If you already have a ticket with us, please send me its number.
We need a sample scene which is loading slowly attached to a support ticket at https://support.chaos.com/hc/en-us/requests/new
We won’t be able to find the culprit unless we reproduce the issue. Otherwise, we can only troubleshoot (see Avi’s message above).
So far, I am not aware of any scene which would load unexpectedly slowly (and loading for 30 minutes definitely doesn’t sound right).

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I will also do my best to post sample scene for further investigation.

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I have the same issue with Corona 11, 3Ds Max 2024.2

Loading hangs up when “loading corona assets” at 100% for a few minutes.

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Hi,

We already have a “long scene loading and viewport lag afterwards” fix internally, and it was related to Scatter.
To check if this is your case, you can:
• Try installing Corona 10 HF3 and opening the scene with it.
• Try saving the scene without scatter objects, then opening it.

If in any of the cases the scene loads faster, then we will be sure that it is already fixed.
This and other NaN related issues will probably make to a hotfix.

52

Thank you, I tried deleting all scatters and saving - still hangs for about 7 minutes after reaching 100% before the viewport appears, then another 30 seconds until it finishes loading.

Should I still try it in Corona 10 HF3?

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Yes, please, if possible.

You can simply open the original (or modified) scene with Corona 10 HF3.

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Can confirm that the issue doesn’t appear with Corona 10 HF3!

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Thanks for trying out and confirming!

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has this issue been solved ? it’s just impossible to work with scenes with cgeo objects, takes ages to load, consumes all memory…

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Can you please contact us at https://support.chaos.com/hc/en-us/requests/new and attach any scene with the problem? (including all assets)

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working on NDA project, so can’t share scene. But just wanted to chime in, that scene loading has increased dramatically since corona 11. Maybe it’s also related to max 2024 as I didn’t update until a couple of months ago?
I’m using max 2024.2 with corona11HF2.

Also had instant crashes with just trying to rename corona materials. Might have been a one off event though. Just trying to mention things in case you can make a connection with other reports. Opening up the material editor in the scene would usually cause max to freeze and no longer respond. Having to force shut down.

Just tried opening the file with 10HF3 and it was a bit faster, but not much. There’s a chaos scatter item in this specific scene.

Now I tried the latest daily from may 10th and here the scene opens up much much faster. Such a big improvement. I’d say we are back to “normal” loading times for a scene like this. The material editor gave me a bit of a scare again, but actually opened soon after.
I’m a bit hesitant to update the render farm, but the latest daily seems to have fixed a lot of things!

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There is a major slow down in Corona - Loading Corona Assets…

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There have been quite a few cases of this solved, a there are some left which are not quite Corona related - e.g. there is a known slown because of 3ds Max cloth plugin but it just happens when “Loading Corona assets” is shown, not related to Corona.

It will be best to get the scene (or the trimmed down version of it) to try testing it on our side.