OpenGL 4.0 shading language cookbook : over 60 highly focused, practical recipes to maximize your use of the OpenGL Shading Language

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The OpenGL Shading Language (GLSL) is a programming language designed to customize parts of the OpenGL graphics pipeline that were previously fixed-function, executing directly on the GPU. It offers unparalleled flexibility for implementing effects and optimizations that leverage modern GPU capabilities. With the refinement in version 4.0, new features have been introduced, including a tessellation shader stage. This practical guide presents easy-to-follow examples that begin with the theory and background of each technique, followed by the necessary GLSL and OpenGL code for implementation. Covering a range of topics from beginner to advanced levels, it includes texturing, screen-space techniques, lighting, shading, tessellation shaders, geometry shaders, and shadows. The guide takes readers from the basics of GLSL 4.0 and OpenGL 4.0 programming to advanced techniques and effects. It showcases methods for creating basic lighting and shading effects, utilizing textures for various applications, and demonstrates screen-space techniques, shadowing, tessellation, geometry shaders, noise, and animation. This resource serves as a foundation for programmers to develop modern, interactive 3D computer graphics applications.