GLSL Essentials -- Table of Contents -- GLSL Essentials -- Credits -- About the Author -- About the Reviewers -- www.PacktPub.com -- Support files, eBooks, discount offers and more -- Why Subscribe? -- Free Access for Packt account holders -- Preface -- What this book covers -- What you need for this book -- Who this book is for -- Conventions -- Reader feedback -- Customer support -- Downloading the color images of this book -- Errata -- Piracy -- Questions -- 1. The Graphics Rendering Pipeline -- A brief history of graphics hardware -- The Graphics Rendering Pipeline -- Geometry stages (per-vertex operations) -- Fragment stages (per-fragment operations) -- External stages -- Differences between fixed and programmable designs -- Types of shaders -- Vertex shaders -- Fragment shaders -- Geometry shaders -- Compute shaders -- GPU, a vectorial and parallel architecture -- The shader environment -- Summary -- 2. GLSL Basics -- The Language -- Language basics -- Instructions -- Basic types -- Variable initializers -- Vector and matrix operations -- Castings and conversions -- Code comments -- Flow control -- Loops -- Structures -- Arrays -- Functions -- Preprocessor -- Shader input and output variables -- Uniform variables -- Other input variables -- Shader output variables -- Summary -- 3. Vertex Shaders -- Vertex shader inputs -- Vertex attributes -- Uniform variables -- Vertex shader outputs -- Drawing a simple geometry sample -- Distorting a geometry sample -- Using interpolators -- Simple lighting -- Basic lighting theory -- Lighting example code -- Summary -- 4. Fragment Shaders -- Execution model -- Terminating a fragment shader -- Inputs and outputs -- Examples -- Solid color mesh -- Interpolated colored mesh -- Using interpolators to compute the texture coordinates -- Phong lighting -- Summary -- 5. Geometry Shaders.

Geometry shaders versus vertex shaders -- Inputs and outputs -- Interface blocks -- Example - pass-thru shader -- Example - using attributes in the interface blocks -- A crowd of butterflies -- Summary -- 6. Compute Shaders -- Execution model -- Render to texture example -- Raw data computations -- Summary -- Index.