Corona 10/11 - Corona Render Assets loading very slow

[cpvisual]

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

[moosp]

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.

[maru]

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.

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).

[Peter A.]

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

[Bjoershol]

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.

[Aram Avetisyan]

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.

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.

[Bjoershol]

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.

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.

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?

[Aram Avetisyan]

Yes, please, if possible.

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

[Bjoershol]

Yes, please, if possible.

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

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

[Aram Avetisyan]

Thanks for trying out and confirming!

[muoto]

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

[maru]

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

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)

[Jens]

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!