Messages

31

[Max] Feature Requests / Re: Remote DR

« on: 2024-04-10, 15:23:06 »

Hi Jpjapers, similar topics were discussed on the forum many times. You can search for stuff like "DR backburner" and it will show you various posts and solutions.

Basically, the idea of DR is literally distributed rendering. So you distribute a single rendering between 2 or more machines.
In case of submitting a rendering from one machine (which is not rendering) for rendering on another single machine, distributed rendering is irrelevant. It requires at least 2 rendering computers.

What you can try instead is:
- Submitting the rendering to Backburner (you submit from computer A and the rendering takes place on computer B)
- Using Backburner with Corona DR (only in case of 1 computer you are submitting from and 2 or more rendering computers) - while this scenario is not officially supported (we can't guarantee it would work), some users were able to use it - https://forum.corona-renderer.com/index.php?topic=27657.msg162920#msg162920
- Using 3rd party apps to submit the rendering on computer A and execute on computer B - for example Pulze or Deadline. I *think* they have free licenses for rendering on 1-2 computers.

32

[Max] Daily Builds / Re: Chaos Corona 12 for 3ds Max - Daily Builds Discussion

« on: 2024-04-10, 13:10:09 »

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

33

[Max] Daily Builds / Re: Chaos Corona 12 for 3ds Max - Daily Builds Discussion

« on: 2024-04-10, 10:36:54 »

Good idea! On it!
Done: link

34

[Max] General Discussion / Re: UHD Precomputation for multiple cameras

« on: 2024-04-09, 18:23:19 »

You can use a single cache for multiple cameras. The only risk is that the quality of the cache generated from camera A will be a little bit worse than if it would be generated for camera B, but that should not be any major issue. It should not cause any rendering slowdown or other problems.

Since you mentioned sea waves, if it's an exterior scene (like a beach) without interior elements or areas illuminated by strong GI, maybe the best solution would be to use path tracing as both the primary and the secondary solver? The UHD cache is mostly useful for interiors.

35

[Max] Bug Reporting / Re: BUG - ShadowCatcher + Env in Dome Mapping mode -> something's really wrong here

« on: 2024-04-03, 13:07:45 »

Thank you for your effort, Pokoy! This has to be one of the greatest bug reports ever made.
We already have a similar report (Report ID=CMAX-251), but I will double check to make sure it's the same issue.

36

[Max] Resolved Bugs / Re: reflection artifacts behind refracted glass

« on: 2024-04-01, 19:26:53 »

This specific case should be resolved, at least when using the Corona Physical Material, which is the default since a few versions.
There are still some cases where "dark highlights" may appear when using non-physical effects, see: https://support.chaos.com/hc/en-us/articles/4528311915025-Known-bugs-and-limitations

37

[Max] I need help! / Re: Chaos cosmos people (material) looks different depends on camera

« on: 2024-03-29, 19:16:12 »

Does the tree have some volumetric effects enabled? (refraction, absorption, scattering)

38

[Max] I need help! / Re: Chaos cosmos people (material) looks different depends on camera

« on: 2024-03-29, 16:21:53 »

I am guessing (but just guessing) that your camera is somehow placed inside a volumetric material such as glass without "thin" option. To fix that, you can run a script which will globally disable volumetric effects in your materials (but not it may also "break" materials which are supposed to be using volumetrics so it's best to save a scene backup):
https://forum.corona-renderer.com/index.php?topic=41371.msg219089#msg219089

Here is a similar case:
https://forum.corona-renderer.com/index.php?topic=41610.0

We are working on detecting this and handling it automatically or through a notification as we understand it is not expected from user point of view.

39

Gallery / Re: Skatepark Bouncing Balls

« on: 2024-03-29, 16:17:21 »

This is the original, by the way. :)

40

[Max] General Discussion / Re: 3DSMax 2025 ACES and Corona Render

« on: 2024-03-29, 16:10:25 »

Here is the short answer:

This applies to both 3ds Max 2024 and 2025 with Corona 11 Hotfix 1:

- When using the legacy gamma 2.2 workflow - everything is straightforward. You can add the ACES OT operator to your tone mapping stack if you wish, pretty much like a LUT. It will make your image appear more "photographic". You can also remove the ACES OT operator. You do not have to add or remove any specific operators.

- When using the OCIO/ACES workflow - You need to add the new gamma correction operator to your tone mapping stack as the last operator. This is because we currently do not support displaying the image in the VFB correctly when using the 3ds Max OCIO/ACES workflow. If you don't apply the gamma correction operator, your image will appear with linear gamma in the VFB (it will look to dark). You can apply the ACES OT operator just like a LUT - it will make your image appear more "photographic".

Please note that the below is not yet fully decided, so I cannot provide you with very specific details:
We will soon release a Corona 11 Hotfix 2 which will support 3ds Max 2025 and will assume the ACES/OCIO workflow as the new default with some kind of automated or semi-automated way of correctly displaying the image in the VFB. We are not sure how exactly this will be done, but we will do it in the usual Corona style so that you don't have to worry about it. :)

41

[Max] Bug Reporting / Re: Files with Corona Volume Grid not opening

« on: 2024-03-29, 11:41:48 »

Could you please report this with the scene and the VDB file at https://support.chaos.com/hc/en-us/requests/new
We will look into it as quickly as possible.

42

[Max] General Discussion / Re: Why hasn't anyone brought this keyboard shortcut back yet? and more..

« on: 2024-03-29, 10:57:38 »

Still nice if Corona's VFB window worked smoother similar to VFB V-Ray :) there even region selection works much smoother during interactive rendering and in Corona it jumps. Maybe in Corona 12 when there will be a brand new VFB also there will be more smoothness :)

Yes, the new version of the VFB should be smoother/snappier/more responsive.

(just internal things below)

tone mapping expanded by default - (Report ID=CMAX-891)
Shift+LMB to draw regions - (Report ID=CMAX-888)

43

[C4D] I need help! / Re: Volumetrics in Physical Material cuts out reflect underneath

« on: 2024-03-29, 10:35:30 »

You can create a Corona Volume Mtl with displacement this way. :)

44

[C4D] I need help! / Re: Volumetrics in Physical Material cuts out reflect underneath

« on: 2024-03-28, 17:07:56 »

It could be related to the way various volumetric media interact with each other. What happens if you change the IOR of the clouds material to 1.0?
What happens if you use a Corona Volume Material for the clouds instead? (absorption can be used instead of opacity: pure white absorption = 0 opacity)

45

[Max] I need help! / Re: Max scripting to automate rendering

« on: 2024-03-28, 16:00:49 »

Not sure if that helps in your case, but you can use the 3ds Max Rendering > Batch render option to render in a batch from various cameras or with different settings. You can also export your batch rendering to .bat from there.