Oren-Nayar-Blinn January 19, 2020 Circular Highlights softer and rounder than phong highlights SOURCE: http://download.autodesk.com/us/3dsmax/2012help/index.html?url=files/GUID-C047BBE5-4095-4C39-99EF-C3488D6AC05-1983.htm,topicNumber=d28e385387 Read more