RenderMan is described as 'PhotoRealistic RenderMan, or PRMan for short, is a proprietary photorealistic RenderMan-compliant renderer'. There are more than 25 alternatives to RenderMan for a variety of platforms, including Windows, Mac, Linux, Autodesk 3ds Max and Sketchup. The best alternative is Cycles Renderer, which is both free and Open Source. Other great apps like RenderMan are LuxCoreRender (Free, Open Source), POV-Ray (Free, Open Source), Keyshot (Paid) and V-Ray (Paid).
- LuxCoreRender is a physically based and unbiased rendering engine. Based on state of the art algorithms, LuxCoreRender simulates the flow of light according to physical equations, thus producing realistic images of photographic quality. View 48 alternatives to LuxCoreRender
- Free • Open Source