This video shows you how to use the pixelart.osl shader in MAXtoA to create a pixel art shading effect.
Thanks to Zap Andersson for the pixelart.osl shader.
OSL shaders in Arnold: https://help.autodesk.com/view/ARNOL/...
3ds Max OSL Shaders: https://github.com/ADN-DevTech/3dsMax...