-shaders now have global illumination turned on by default and the look maybe a bit brighter, if that’s the case just go material preview, override preferences, disable GI
-for some reasons (at least on older builds) some of my scenes opened using Cinema4D OCIO by default, be sure to go to project settings, color management, select basic, linear workflow, sRGB
We added an option because if you have a SSS translucent mode with V-Ray Mtl without the option enabled, the preview of the material will be black, which is not user-friendly.
Hi @bern_diener , as @sirio76 mentioned, the built-in OCIO color management is not yet supported. It was introduced in Cinema 4D 2023 and to keep the result consistent with previous versions, the old sRGB profile has to be used. By your provided screenshots, I think that is the main culprit for the changed appearance.