Messages

31

[Max] Bug Reporting / Re: Bloom & Glare are not in alpha...

« on: 2025-06-10, 11:13:01 »

The settings for bloom and glare in Alpha are in Render Settings > Camera > Bloom and Glare.

But apparently CShading_Alpha is not saved with bloom and glare, instead Alpha is (this is reported).
You can save Alpha directly from VFB as a workaround for now. For CShading_Alpha, we will see if it makes sense to have another "Inlcude Bloom and Glare" checkbox in render element settings.

32

[Max] Bug Reporting / Re: Corona proxy scale issue

« on: 2025-06-10, 11:00:31 »

This is expected, as CoronaProxy preserves its real measurements when scene units are changed.
E.g. if you create a teapot object (teapot type) next to it and change the units, teapot radius will get changed, instead of it being scaled. If you check CoronProxy measurements (utility tab) before and after scene unit change, they should be the same - hence the scaling of proxies.

33

[Max] I need help! / Re: noise threshold and tone mapping

« on: 2025-06-09, 15:29:32 »

Hi,

Noise level is calculated for the render before it is tone mapped. Generally tone mapping should have nothing to do with noise (and noise level) but if you get less noisy render with tone mapping/post-processing (e.g. sharpening, blurring) that does not affect the calculated noise level.

34

[Max] Daily Builds / Re: Chaos Corona 13 for 3ds Max - Daily Builds Changelog

« on: 2025-06-05, 20:43:29 »

First Release Candidate for Corona 13 is here!

Please check this article covering the risks of using daily/non-final builds: Daily Builds FAQ
If you are familiar with the daily builds and know how to use them, download the newest one here:

Drive link: chaos-corona-13-RC1.exe
Also: Link in My Chaos.

Major User-Facing Improvements

• Scatter: Added option to generate clusters. Clusters can be generated, mapped using instance color map or painted via layers.

User-Facing Improvements

• Improved controls of Thin Film in Corona Physical Material.
• Added option to disable ACES OT operators in the warning message.
• Set IR pass limit to 200 by default.

Bugfixes

• CoronaBitmap selection dialog would default to ACEScg on load. Now it remembers last selected bitmap info.
• Fixed issue where some fireflies were not removed.
• Fixed issues with scene/material conversion of the imported vr scene.
• Fixed issue where node visibility was not updated in IR.
• Fixed issue where convex objects could create outlines where they should not have been.
• Fixed issue where at very rare occasion scene would be empty when starting IR.
• Scatter:
  • Fixed crash that may rarely happen on scene reset.
  • Fixed issue when the edge trimming was not fully respecting final transformations.
  • Fixed behavior of the edge trimming for grouped/hiearchical models and their children.

35

General CG Discussion / Re: 3dsMax file size increases considerably after saving to new version of Max

« on: 2025-06-04, 16:06:40 »

Hi,

Check Compress on save in Preferences > Files.

36

[Max] I need help! / Re: Corona Plugin Slow to Load on Max Open

« on: 2025-06-04, 15:24:33 »

It was improved in previous versions of Corona.
Which version are you using (workstations, nodes)?

37

[Max] General Discussion / Re: cloud

« on: 2025-06-04, 12:03:07 »

Hi,

If you want to create the clouds, that you should simulate or base-model and displace-the-hell-out of it.

On the other hand, there are free cloud VDBs available online, which you can use and tweak by CoronaVolumeMtl.
E.g.: https://kamilkrb.gumroad.com/l/FreeVDBclouds

38

[C4D] Daily Builds / Re: New Toon Shader > documentation

« on: 2025-06-04, 08:29:36 »

Ah sorry, my bad, I thought this is 3ds Max daily builds section (it is available for 3ds Max DBs).

39

[C4D] Daily Builds / Re: New Toon Shader > documentation

« on: 2025-06-03, 20:06:21 »

WOW! Fab work Team Corona!!!! Just tried the new outline, just what I have been waiting for to create technical drawings of units. The wire just did not cut the mustard, well happy :-)

You can as well enhance the human model with AI Enhancer, available in the v13 DBs and also coming soon in v13.

40

[Max] I need help! / Re: How to have a shadow when multiple lights are cancelling each other?

« on: 2025-06-03, 20:03:54 »

Hi,

Your lighting setup is too dense, and yes, they cancel each other if placed so.
You can try placing the lights further away from the furniture.

I believe, nevertheless, that a uniformly lit environment light (aka HDRI or a solid color), optionally with some lights, will do the job.

41

[Max] Daily Builds / Re: Chaos Corona 13 for 3ds Max - Daily Builds Changelog

« on: 2025-05-30, 16:18:17 »

Please check this article covering the risks of using daily builds: Daily Builds FAQ
If you are familiar with the daily builds and know how to use them, download the newest one here:
chaos-corona-13-3dsmax-daily-2025-05-30.exe

Major User-Facing Improvements

• Added support for exporting animations to Vantage.
• Added support for AI Enhancer in Chaos Cloud Collaboration (new CMasking_AiEnhancer element should be added).

User-Facing Improvements

• Minor fixes of VrScene import dialog.
• Moved firefly filter to the Scene Rolout and reduced the strength by a factor of 5.
• Added basic support for Cosmos variants.

Bugfixes

• Fixed issue where Out of core textures sometimes stored files on disk even when disabled.
• Fixed issue where IR was restarted when selecting CoronaCamera while on Max Modify tab.
• Fixed issue where applying decal on top of particle system could make the particle to disappear.
• Fixed issue where plugging ray-switch material into outline material would lead to crash.
• Detection of camera being inside medium uses new robust algorithm that ignores volumes created by "planar" geometry. Scenes before this fix are not affected.
• Fixed issue where Corona Sky was not working in Corona Standalone.
• Fixed issue where plugging Corona Sky into Corona SelectMap may lead to evaluating Volume effect from de-selected Corona Sky.
• Fixed crash that could occur when drag&dropping older assets from Cosmos.
• Fixed newly created CoronaLights missing viewport gizmo rays.

42

[Max] I need help! / Re: TileMap - render to texture fails

« on: 2025-05-30, 13:51:02 »

Hi,

Try using bake to texture. TileMap is generated (fully) during rendering and its preview in material editor is not quite the same as the actual rendered result.

43

[Max] I need help! / Re: Exterior Animation Flickering in Shadows Issue

« on: 2025-05-30, 12:01:01 »

Hi,

We will need the scene to properly investigate this.

Meanwhile, try toggling Legacy environment map filtering and legacy medium resolving in performance tab (development settings), also enabled Accurate Sampling in Render Settings > Scene environment.

44

Work in Progress/Tests / Re: Realtime vs Offline: Corona render vs D5 Comparison

« on: 2025-05-22, 22:43:55 »

That is a good initiative.

If possible, please try including Vantage in comparison too - there is a very wide support of Corona maps and materials with the live link or export.

And if you are really into it, you can try Envision too ;)
You can export the Corona scene to .vrscene and import it to Envision.

If rendering (maybe raw export/import, and little currection-setup too?) times are included, it will be a great comparison!

45

[Max] Daily Builds / Re: Chaos Corona 13 for 3ds Max - Daily Builds Changelog

« on: 2025-05-21, 17:47:10 »

Please check this article covering the risks of using daily builds: Daily Builds FAQ
If you are familiar with the daily builds and know how to use them, download the newest one here:
chaos-corona-13-3dsmax-daily-2025-05-21.exe

Major User-Facing Improvements

• Added new Toon material.
• Added new Corona Outline Material. It is possible to setup outline material globally or per object/material.
• Added thin film to the Corona physical material. This allows the users to create materials with iridescence (e.g. soap bubble).
• Added firefly filter that cleans fireflies during the whole rendering, both interactive and production.
• Added .vrscene import and its icon in Corona toolbar, which requires VRay to be installed to work.

User-Facing Improvements

• Added a conversion from Arnold standard surface to CoronaPhysicalMtl.
• Adds decals to Lister with the main properties accessible.

Bugfixes

• Fixed issue where decal with refraction intersecting solid objects could turn the object into medium container and thus influence the rendering of other objects in its vicinity.
• Fixed issue where production denoising was applied after interactive rendering has finished.
• Fixed issue where shadows from clouds were taken from a wrong environment map when using SelectMap.
• Fixed changing of cursor to type after tone mapping reset in VFB.
• Fixed Corona Camera's parsing of animated clipping checkbox value.
• Fixed BloomAndGlare alpha to update the VFB content.
• Fixed wrong TileMap's gapBlur parameter name.
• Fixed issue where Ambient Occlusion with Outlines enabled in the scene would cause the rendering to get stuck.
• Due to its inconsistent behavior, we have disabled drag&drop of multiple assets from Cosmos.