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Messages - maru

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1
We were unable to reproduce this with Corona 12 Update 2 HF1 and Forest Pack 9.2.3. Everything appears to be working fine with IR nad production render.
If you are able to reproduce this using the above versions, please send us a sample scene at https://support.chaos.com/hc/en-us/requests/new

2
Sounds like this is the same issue as described here: https://forum.corona-renderer.com/index.php?topic=43296.msg233393#msg233393

@anyone with this issue - please contact us about it at https://support.chaos.com/hc/en-us/requests/new

Thank you!

3
Could you please contact us at https://support.chaos.com/hc/en-us/requests/new and attach any scene where this can be reproduced? Thank you in advance!

4
Which version of Corona are you using? If you are using Forest Pack, please also make sure that you use the newest available version.
Other than that, I can echo what Romullus said: capture a minidump and send it to us
Here is how - https://support.chaos.com/hc/en-us/articles/4649117083409-How-to-report-issues-3ds-Max
And here is the contact form - https://support.chaos.com/hc/en-us/requests/new

5
[Max] I need help! / Re: Corona License Problem
« on: 2025-05-19, 17:21:05 »
According to this article https://docs.chaos.com/display/LIC5/Borrowing+Licenses+for+Offline+Use you need to do the following:
Quote
To release a borrowed license, open the Chaos License Interface in a browser and click on the Online Licensing menu. Then click the RELEASE button to release any borrowed licenses.

But as Romullus mentioned, the best idea is to submit a support ticket so that the licensing team assists you.

6
[Max] Bug Reporting / Re: Nan
« on: 2025-05-19, 17:18:26 »
@Rigugegl - can you share your support ticket number?

7
[C4D] I need help! / Re: Node Connection Create New Node
« on: 2025-05-19, 17:14:07 »
Since this is a feature request, please log it at our Ideas Portal - https://chaoscorona.ideas.aha.io/

8
We have never ever supported this, it isn't possible due to technical reasons.

10
This is fixed in Update 2 Hotfix 1 - https://my.chaos.com/download/build?product=Corona

12
[Max] Resolved Bugs / Re: object transform bug during IR
« on: 2025-05-16, 18:28:31 »
This is fixed in Update 2 Hotfix 1 - https://my.chaos.com/download/build?product=Corona

13
This particular HDRI doesn't seem to be calibrated correctly. If you place a Corona Sun next to the sun in the HDRI and check their RGB values, you will see that the Corona Sun is about 2x stronger than the one in the HDRI. I don't think there was some cloud layer or haze in the air while capturing that HDRI, it looks clear. The sunlight intensity on the 3D objects appears much lower than for example on the church facade in the image. Note that this HDRI is provided by a 3rd party vendor.

14
5700X is not a high-end CPU, so 30 minutes for a reasonable quality may be expected.

If you'd like, you can contact us and send us a scene (archived with all assets) at https://support.chaos.com/hc/en-us/requests/new

Off the top of my head, I would try the following:
- Increase GI vs. AA value from 16 to 32 - I can see that you are dealing with strong noise in glossy reflections and this should help
- How are the long ceiling lights made? Are they Corona Lights, Light Material, or a material using self-illumination? If you would like them to illuminate the scene, use Corona Lights or Light Mtl (they should render the same). If you only want them to glow without actually casting much illumination into the scene, you should use self-illumination. Also check if they are not intersecting with other geometry or shining into the ceiling. That might produce lots of light bouncing around = noise.
- How is you glass made? If it's solid, maybe you could get away with "thin" glass? ("Thin shell (no inside)" option in Corona Physical Mtl)
- Make sure you are using the UHD Cache as the secondary GI solver. Your scene has lots of glossy reflections and light bouncing around so it will help with render times.

Other than that, I can recommend enabling denoising. From your description I wasn't sure if you are using it or not. The Intel AI denoiser has particularly good speed to quality ratio.

15
Hi, we took a closer look at this and there are definitely some issues with the scene itself:
1) The texture is not seamless or tileable. You can check that by opening it in Photoshop and offsetting it by 50%. So some seams are bound to appear no matter what mapping type you use.
2) The UVW mapping on the object is very random. You can check that by applying the Unwrap UVW modifier and looking at the editor. All faces are inverted (although I am not sure if that's a problem since ALL of them are inverted). If you improve the mapping, for example by using box mapping, the result looks better (although seams are still visible due to point 1).

This doesn't however explain why disabling autobump fixes the issue. We will look into this and share any findings with you.

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