Photorealistic rendering has long been a holy grail for computer graphics, synthesizing realistic images indistinguishable from real photographs. Although global shading models, such as ray tracing, have been developed for quite a while, the animation industry still uses local shading models. However, due to recent developments in ray tracing, many animation studios started to re-architect their renderers using ray tracing. Such renderers have been used for the production of many animations and effects films, such as "Monsters University" and "The Hobbit." This course will cover the fundamentals of the ray tracing algorithm behind these renderers based on PBRT, a book and a ray tracer designed for education purposes, and won an Oscar Sci-Tech award in 2014.