Solid Angle Arnold for Cinema 4D R20-R21 v2.6.2 Win/Mac Arnold is an advanced Monte Carlo...
Features
Seamless integration with C4D: objects (instances, cloners, deformers, generators), MoGraph geometry, hair and splines.
Support for both native particles and Thinking Particles.
The fastest interactive rendering (IPR) of all Arnold plugins, allows parameter changes to be rapidly previewed without interrupting your work.
Arnold Shading Network Editor, a node-based material editor.
A comprehensive list...