This hotfix addresses specific issues, and all Corona 13 users, for both 3ds Max and Cinema 4D, are recommended to download it. Find more details below.
Download now:
chaos.com/corona/downloadChaos Corona 13 for 3ds Max (Hotfix 1)This release brings the following improvements and bug fixes:
Improvements- Added support for beta version of AI material generator. The generator can be found in Cosmos.
Bug Fixes- Fixed issue where materials with textures plugged into roughness or IOR slots could be exported incorrectly into Vantage.
- Fixed issue where firefly filter could create NaNs.
- Fixed issue where outline was rendered incorrectly when using Camera with non-zero physical size.
- Fixed slow uninstall stage of installer.
Chaos Corona 13 for Cinema 4D (Hotfix 1)This release brings the following improvements and bug fixes:
Improvements- Added support for beta version of AI material generator. The generator can be found in Cosmos.
- Improvements in .vrscene import and scene converter
- V-Ray Environment object is now converted into Corona Sky when all of its subshaders are the same
- Added support for V-Ray Color, Combine Color and Mix shaders
- Performance improvements of Scene conversion dialog
- Updated ULA service to version 2025.4.30.100
Bug Fixes- Fixed crash when Layered material was connected into Outline material
- Fixed issue with level parameter for Top and Base layers in Corona Mixture shader not working
- Fixed issue with camera physical size influencing outline (Outline material)
- Fixed incorrect output of viewport render when using legacy color management in C4D 2025
- Fixed not correctly applied view transform in viewport render when using OCIO in C4D 2023+
- Fixed issues with non-color textures (e.g. roughness or IOR) used in non-trivial materials not correctly rendered in Vantage when connected via live link
- Fixed slow uninstallation
- Fixed "Save Project with Assets" not correctly handling assets from asset browser
- Fixed some cases when assets were missing during render when using team render
- Fixed several cases of NaN errors on macOS
Note about naming of development builds going forwardFor historical reasons, in-development versions of Corona have been released under the name of "Daily Builds". This name has not made a great deal of sense for some years however, since those releases are usually weeks apart! After today, we'll be calling these Previews instead of calling them Daily Builds. This means a release cycle will look like this (we'll assume there is always a Hotfix for any given final release, and only one of those):
Corona X Release version
Corona X+1 Preview, repeat as necessary
Corona X (Hotfix 1) Release version
Corona X+1 Preview, repeat as necessary
Corona X+1 Release Candidate, repeat as necessary
Corona X+1 Release version
On the download page, both Preview and Release Candidate builds will be listed under the "Preview" category since they are the same in having undergone full QA, and RCs are simply Previews that are feature-complete and come out after a feature freeze. There's no change to anything other than the naming :)
