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Patricio Gonzalez Vivo and Jen Lowe have a wonderful step-by-step guide to the abstract and complex universe of Fragment Shaders.
Fragment shaders give you total control over the pixels rendered on the screen at a super fast speed. This is why they’re used in all sort of cases, from video filters on cellphones to incredible 3D video games.
Journey by That Game Company
In the following chapters you will discover how incredibly fast and powerful this technique is and how to apply it to your professional and personal work.
Who is this book for?
This book is written for creative coders, game developers and engineers who have coding experience, a basic knowledge of linear algebra and trigonometry, and who want to take their work to an exciting new level of graphical quality. (If you want to learn how to code, I highly recommend you start with Processing and come back later when you are comfortable with it.)
The Book of Shaders
The book covers a wide range of topics: algorithmic drawing, generative designs, image processing, simulation and 3D graphics. Make sure check out the list of topics and learn more about the book here.