Maxwell Render is a rendering engine based on the mathematical equations governing light transport. Maxwell Render is unbiased. Maxwell Render can fully capture all light interactions between all elements in a scene, and all lighting calculations are performed using spectral information and high dynamic range data.
License: Maxwell Render Student v3 (annual, Node Locked licenses), non-commercial use only.
Operating System: Windows, Mac OS, Linux
System requirements: see vendor's site
Version: last one
How to get the software and the license: