It is free, safe, and works perfectly with Cinema 4D R25. The single-GPU limit is a minor inconvenience for learning, personal projects, and even some professional still renders.
When Octane Render is integrated with Cinema 4D, users can harness the power of real-time rendering within their favorite 3D modeling and animation software. This seamless integration allows artists to:
you can download and use a version of OctaneRender for Cinema 4D R25 , it is important to distinguish between the limited-feature trial (Demo) and the platform-specific free tier (Octane X Prime). Official Free Options for OctaneRender OctaneRender Demo (Windows & macOS)
: Students and educators can often apply for free or heavily discounted licenses through official educational programs on the OTOY Education page . How to Install for R25