Realistic Image Synthesis Using Photon Mapping (Anglais)
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Présentation de l'éditeur
Photon mapping, an extension of ray tracing, makes it possible to efficiently simulate global illumination in complex scenes. Photon mapping can simulate caustics (focused light, like shimmering waves at the bottom of a swimming pool), diffuse inter-reflections (e.g., the "bleeding" of colored light from a red wall onto a white floor, giving the floor a reddish tint), and participating media (such as clouds or smoke). This book is a practical guide to photon mapping; it provides the theory and practical insight necessary to implement photon mapping and simulate all types of direct and indirect illumination efficiently.--Ce texte fait référence à l'édition Broché.
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Commentaires client les plus utiles sur Amazon.com
Some more example images of ray-traced scene, even if black&white only, would make the book even more fun to read.
Its inventer, Jensen did an exceptional job at explaining it with this book. The way the book is put togather is sublime. It goes into detailed explanation of the foundations and previous works in computer graphics to be pertinent rather than tedious. If you understand the math that he presented to you, great! But what's really cool is that the math will tend to make more and more sense intuitively as you read and implement the algorithm. You will probably need some form of computer science background (analysis of algorithms and at least one computer graphics course) to fully appreciate it. But anyone should be able to implement a photon mapper in C++ after reading the book. Jensen even gives you the source code for a photon map, all you need is to write a ray tracer.
I would definitely recommend this book for anyone who is interested in computer graphics, especially if you are interested in rendering. Every CS student in rendering should write a hemicube radiosity renderer and a photon mapper... or at least own this book.
one of the appeals of this branch of graphics is that the core concepts are simple and general - particles of light moving in straight lines and bouncing off things - something that is easy to grasp. but where this is so often clouded with equations when reading research papers, this book doesnt forget that computer graphics is about algorithms, and it explores those basic concepts in that way. mathematics just provides some checkpoints.
at the end its become quite a complex system, but still not perfect. by then though, youll be wondering about your own possible extensions or variations... hmmm...
if youve had an inclination to investigate the ray/path/particle-tracing side of graphics, or if you want to develop a high-quality renderer then this is a must have.
(i think the marble bust is artemis. hail artemis!)
On the other hand, his sample code is atrocious, with well-thought-out variable names like "foo" and "foo_photon" and nary a comment to be seen. Although you can pick through the worst of it, you're almost better off not bothering - just pick up your algorithms text from university and just start reading. Quite a disappointment after reading an otherwise excellent book.
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