Many people are using Vray, Maxwell, Octane or Corona engine to rendering, time to time people are talking about Arnold or Renderman engine. Cinema 4D has own rendering engine Lightwave too.
Over year ago i found that there is some other cool render engine - Thea Render (over 5 years ago i used Kerkythea engine made by the same company). Thea is very fast and easy to learn and has some wide range of plugins to connect Thea with other software - 3D Max, Cinema 4D, Sketchup (yeeees!), Rhino, Blender. In previous week i prepared ready to use library with detailed 3D trees models which is available for free for all Thea licensed users. Link for info and download:
https://www.thearender.com/site/index.php/resources/thea-libraries/thea-trees.html
I hope that Thea users find this stuff useful :)
