Photorealistic computer graphics are ubiquitous in today's world, widely used in movies and video games as well as product design and architecture. Physically-based approaches to rendering, where an accurate modeling of the physics of light scattering is at the heart of image synthesis, offer both visual realism and predictability. Now in a comprehensively updated new edition, this best-selling computer graphics textbook sets the standard for physically-based rendering in the industry and the field.

Physically Based Rendering describes both the mathematical theory behind a modern photorealistic rendering system as well as its practical implementation. A method known as literate programming combines human-readable documentation and source code into a single reference that is specifically designed to aid comprehension. The book's leading-edge algorithms, software, and ideas--including new material on GPU ray tracing--equip the reader to design and employ a full-featured rendering system capable of creating stunning imagery. This essential text represents the future of real-time graphics.

• Detailed and rigorous but accessible approach guides readers all the way from theory to practical software implementation
• Fourth edition features new chapter on GPU ray tracing essential for game developers
• The premier reference for professionals learning about and working in the field
• Won its authors a 2014 Academy Award for Scientific and Technical Achievement
• Includes a companion site complete with source code