Arnold for Houdini 6.2.5.0 (20.0.547) / 6.2.5.2 (20.0.590) Win x64

Autodesk Arnold software is an advanced Monte Carlo ray tracing renderer that helps you deliver beautiful and predictable results.

http://help.autodesk.com/view/ARNOL/ENU/?guid=arnold_for_houdini_6250_html

http://help.autodesk.com/view/ARNOL/ENU/?guid=arnold_for_houdini_6252_html