Once installed, go to Edit > Preferences > Renderer and set Redshift as your default. Then, in the Redshift preferences, ensure the is disabled (ironically, 3.5.24 performs faster with it off on older GPUs) and that your memory limit is set to 85% of your VRAM to avoid the dreaded "Redshift ran out of GPU memory" error.
Launch the app and sign in with your Maxon account credentials. In the Maxon App, navigate to the Products tab. Locate Cinema 4D in the list. maxon cinema 4d studio 20242 redshift 3524 install
Do not install over an existing version. Windows Registry conflicts are the #1 cause of failure. Once installed, go to Edit > Preferences >
Once both are installed, you need to tell C4D to use the new Redshift version as your primary renderer. go to Edit >