For developers looking for digital copies or supplementary materials: Shader X6: Advanced Rendering - Engel, Wolfgang
: Covers post-processing techniques that have since become industry standards, such as depth-of-field simulations and advanced image filtering. shaderx6 pdf
: This article by Jason Zink is a primary "special feature" listed in the Rendering Techniques section (2.4). Computing Per-Pixel Object Thickness For developers looking for digital copies or supplementary