Monsters University: rendering physically based monstersWhen he was hired the team was looking at new ways to light and render MU, which included looking at point bleeding and irradiance. They were also looking at spherical harmonics (SH), along the lines of the systems being used so well at places like Weta Digital. Surprisingly then, Hery said “no, no no … now we should do ray tracing.” The film started being rendered with RenderMan 16, but finished
