# corona lightmix and beauty pass have different saturations or rather color space **URL:** \ **Category:** Help Required\ **Created:** [November 18, 2024, 12:07pm UTC](https://forums.chaos.com/t/corona-lightmix-and-beauty-pass-have-different-saturations-or-rather-color-space/158943 "2024-11-18T12:07:37Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![imokha](https://avatars.discourse-cdn.com/v4/letter/i/41988e/32.png) [@imokha](https://forums.chaos.com/u/imokha)\ **Post date:** [November 18, 2024, 12:07pm UTC](https://forums.chaos.com/t/corona-lightmix-and-beauty-pass-have-different-saturations-or-rather-color-space/158943/1 "2024-11-18T12:07:37Z")
when i render a final image in the vfb, and i switch to interactive light mix to edit my lights, the vfb suddenly turns desaturated, without touching any setting. what’s wrong? i have attached two images the first is lightmix the second is beauty. please help. I am using corona 12 hot fix 1 and 3dsmax 2025.3 ![lightmix.jpg](https://europe1.discourse-cdn.com/chaosprd/original/3X/b/9/b99e8ba00e3ba3b0957983e70f19c35b1ec2e7df.jpeg) ![beauty.jpg](https://europe1.discourse-cdn.com/chaosprd/original/3X/4/b/4bb0df1064a15e8223a4cb6263cd9dde6551c824.jpeg) ---
**Author:** ![AramAvetisyan](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/aramavetisyan/32/271059_2.png) [@AramAvetisyan](https://forums.chaos.com/u/AramAvetisyan)\ **Post date:** [November 18, 2024, 3:04pm UTC](https://forums.chaos.com/t/corona-lightmix-and-beauty-pass-have-different-saturations-or-rather-color-space/158943/2 "2024-11-18T15:04:48Z")
Hi, You are absolutely sure that lightmix and beauty are identical, right? (nothing was changed in lightmix). If so, and if you are using OCIO workflow, share a screenshot of the OCIO settings and also try doing the comparison using Gamma workflow - see if the images are identical. If they are identical (no desaturation) with Gamma workflow but differ with OCIO, we will need the scene (or a stripped down version of it) to investigate for a possible issue. Thanks in advance. ---
**Author:** ![imokha](https://avatars.discourse-cdn.com/v4/letter/i/41988e/32.png) [@imokha](https://forums.chaos.com/u/imokha)\ **Post date:** [November 18, 2024, 3:44pm UTC](https://forums.chaos.com/t/corona-lightmix-and-beauty-pass-have-different-saturations-or-rather-color-space/158943/3 "2024-11-18T15:44:13Z")
nothing was changed in the settings, alright i will the scene please because i mostly use ocio workflow as it recommended by my company. Also it does fine with gamma 2.2 workflow but only happens on aces config [https://drive.google.com/file/d/1xJHEDfYqRW7HRT6a4IqmiLI4KYBgKqTI/view?usp=sharing](https://drive.google.com/file/d/1xJHEDfYqRW7HRT6a4IqmiLI4KYBgKqTI/view?usp=sharing) ---
**Author:** ![AramAvetisyan](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/aramavetisyan/32/271059_2.png) [@AramAvetisyan](https://forums.chaos.com/u/AramAvetisyan)\ **Post date:** [November 19, 2024, 11:42am UTC](https://forums.chaos.com/t/corona-lightmix-and-beauty-pass-have-different-saturations-or-rather-color-space/158943/4 "2024-11-19T11:42:41Z")
Thanks for the scene. I can confirm it is happening and this will be further investigated. I will share the updates here. ---
**Author:** ![AramAvetisyan](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/aramavetisyan/32/271059_2.png) [@AramAvetisyan](https://forums.chaos.com/u/AramAvetisyan)\ **Post date:** [November 19, 2024, 12:24pm UTC](https://forums.chaos.com/t/corona-lightmix-and-beauty-pass-have-different-saturations-or-rather-color-space/158943/5 "2024-11-19T12:24:29Z")
> [@imokha](#): > > when i render a final image in the vfb, and i switch to interactive light mix to edit my lights, the vfb suddenly turns desaturated, without touching any setting. what’s wrong? i have attached two images the first is lightmix the second is beauty. > please help. Please also tell which exact version of Corona and 3ds max are you using. Thanks ---
**Author:** ![imokha](https://avatars.discourse-cdn.com/v4/letter/i/41988e/32.png) [@imokha](https://forums.chaos.com/u/imokha)\ **Post date:** [November 19, 2024, 7:06pm UTC](https://forums.chaos.com/t/corona-lightmix-and-beauty-pass-have-different-saturations-or-rather-color-space/158943/6 "2024-11-19T19:06:51Z")
I am using corona 12 hot fix 1 and max 2025 ---
**Author:** ![Steff\_1](https://avatars.discourse-cdn.com/v4/letter/s/c57346/32.png) [@Steff\_1](https://forums.chaos.com/u/Steff_1)\ **Post date:** [January 30, 2025, 10:30pm UTC](https://forums.chaos.com/t/corona-lightmix-and-beauty-pass-have-different-saturations-or-rather-color-space/158943/7 "2025-01-30T22:30:03Z")
Corona 12 Update 1 (Hotfix 1), 3ds Max 2025 The problem still exists, are there any possible solutions? I’m attaching a detailed example: New empty scene in OCIO color mode, neutral-lut.png file loaded as raw placed into the scene as environment map in screen mode. ![neutral-lut.png](https://europe1.discourse-cdn.com/chaosprd/original/3X/3/6/36eaa1bb9049b0a31193c3c38ea1bf495be4d553.png) [https://forum.corona-renderer.com/index.php?action=dlattach;topic=43922.0;attach=207356;image](https://forum.corona-renderer.com/index.php?action=dlattach;topic=43922.0;attach=207356;image) Here are the results of rendering from VFB for Beuty and LightMix: [https://forum.corona-renderer.com/index.php?action=dlattach;topic=43922.0;attach=207346;image](https://forum.corona-renderer.com/index.php?action=dlattach;topic=43922.0;attach=207346;image) [https://forum.corona-renderer.com/index.php?action=dlattach;topic=43922.0;attach=207348;image](https://forum.corona-renderer.com/index.php?action=dlattach;topic=43922.0;attach=207348;image) Here are their Scopes: [https://forum.corona-renderer.com/index.php?action=dlattach;topic=43922.0;attach=207350;image](https://forum.corona-renderer.com/index.php?action=dlattach;topic=43922.0;attach=207350;image) [https://forum.corona-renderer.com/index.php?action=dlattach;topic=43922.0;attach=207352;image](https://forum.corona-renderer.com/index.php?action=dlattach;topic=43922.0;attach=207352;image) EXR files just in case [https://forum.corona-renderer.com/index.php?action=dlattach;topic=43922.0;attach=207354](https://forum.corona-renderer.com/index.php?action=dlattach;topic=43922.0;attach=207354) [https://forum.corona-renderer.com/index.php?action=dlattach;topic=43922.0;attach=207355](https://forum.corona-renderer.com/index.php?action=dlattach;topic=43922.0;attach=207355) As you can see, this is not just a lack of saturation, it is a color distortion, especially strong in the red channel. ![Beauty_vfb.JPG](https://europe1.discourse-cdn.com/chaosprd/original/3X/7/4/7483333774b6132f76c1d0dcba65b96fb76f50de.jpeg) ![LM_vfb.JPG](https://europe1.discourse-cdn.com/chaosprd/original/3X/a/0/a0334a3076896fa3a5fc9fc95c1e4dbadf68cda4.jpeg) ![Beauty_Scope.JPG](https://europe1.discourse-cdn.com/chaosprd/original/3X/b/0/b09e3c48b85e951a69dbb279424ddc6cd621e08d.jpeg) ![LM_Scope.JPG](https://europe1.discourse-cdn.com/chaosprd/original/4X/c/6/0/c609debb8689c7df04dccfc5c1418a1db3193d6f.jpeg) [BEAUTY\_EXR\_2.exr](https://forums.chaos.com/uploads/short-url/c8Yad1iQ91nSnWoBMrPxHhHV45J.exr) (9.31 MB) [LM\_EXR\_2.exr](https://forums.chaos.com/uploads/short-url/ahfG7aDhySQlAZ1GJJlqk513LNL.exr) (11.6 MB) ![ColorManagement.JPG](https://europe1.discourse-cdn.com/chaosprd/original/3X/4/b/4b972a3bce8ba4b7a14b4c2384a613d27a9c49fa.jpeg) ---
**Author:** ![AramAvetisyan](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/aramavetisyan/32/271059_2.png) [@AramAvetisyan](https://forums.chaos.com/u/AramAvetisyan)\ **Post date:** [January 31, 2025, 8:06am UTC](https://forums.chaos.com/t/corona-lightmix-and-beauty-pass-have-different-saturations-or-rather-color-space/158943/8 "2025-01-31T08:06:51Z")
This has been fixed for a while internally. Next daily build will most probably have this in it. Please give it a try when it is out. Note that some tiny difference may still be expected, but there won’t be a difference as in the original images posted. (Report ID=CMAX-1402) (Report ID=CMAX-22)