https://help.autodesk.com/view/ARNOL/ENU/?guid=arnold_user_guide_ac_surface_shaders_ac_open_pbr_html

https://academysoftwarefoundation.github.io/OpenPBR/

https://t.co/vrzm6b9qAv

Support added for Camera > Environment > Background Color: The maya camera attrbiute “backgroundColor” is now supported to change the background color of the current render(MTOA-1727)

https://help.autodesk.com/view/ARNOL/ENU/?guid=arnold_for_maya_543_html

3D ramp modes – https://help.autodesk.com/view/ARNOL/ENU/?guid=arnold_user_guide_ac_wn_733_ramps_html

Head scan from www.3dscanstore.com

https://help.autodesk.com/view/ARNOL/ENU/?guid=arnold_core_7330_html

https://help.autodesk.com/view/ARNOL/ENU/?guid=arnold_user_guide_ac_whats_new_html

I highly recommend this stool if you have a sit/stand desk. Especially, if you like jigging to music while you work!