Click the "Interactive Production Render" button (the teapot icon with a play button). This starts V-Ray’s IPR (Interactive Product Render). Move a cube around. You will see the lighting update in real-time. This is the magic of V-Ray GPU.
Searching Reddit or torrent sites for "V-Ray for Cinema 4D free download full version" leads to: Click the "Interactive Production Render" button (the teapot
Heads up: There is no "crippled" free version. Unlike some software, Chaos does not offer a free tier with a logo watermark. Your only legal free options are the Trial or Education license. Searching Reddit or torrent sites for "V-Ray for
You have the software. Now, what do you actually do? Forget the complex settings for now. Follow this beginner workflow: You have the software
V-Ray is commercial software (~$80/month or $470/year). Chaos Group is a private company that invests millions in R&D. However, they do offer legitimate ways to use V-Ray for free.