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by yuriks 4346 days ago
If you're interested in ray/path tracing or photorealistic rendering at all I would seriously recommend Physically Based Rendering[1]. It's probably one of the most satisfying book purchases I've made. The authors go through every aspect of implementing a quality path tracer: image sampling, surface shading models, statistics and integration methods, intersection testing and acceleration and more. It's an absolute treasure trove of information. (Be prepared to do a lot of math.)

[1] http://www.amazon.com/Physically-Based-Rendering-Second-Impl...