Practical Shader Development : Vertex and Fragment Shaders for Game Developers

It’s time to stop thinking that shaders are magical. You can use shaders to turn data into stunning visual effects, and get your hands dirty by building your own shader with this step-by-step introduction to shader development for game and graphics developers. Learn how to make shaders that move, tint, light up, and look awesome, all without cracking open a math textbook.**__Practical Shader Development__** teaches the theory behind how shaders work. The book also shows you how to apply that theory to create eye-popping visual effects. You’ll learn to profile and optimize those effects to make sure your projects keep running quickly with all their new visuals. You’ll learn good theory, good practices, and without getting bogged down in the math. Author Kyle Halladay explains the fundamentals of shader development through simple examples and hands-on experiments. He teaches you how to find performance issues in shaders you are using and then how to fix them. Kyle explains (and contrasts) how to use the knowledge learned from this book in three of the most popular game engines today. **What You'll Learn** * Understand what shaders are and how they work * Get up to speed on the nuts and bolts of writing vertex and fragment shaders * Utilize color blending and know how blend equations work * Know the coordinate spaces used when rendering real-time computer graphics * Use simple math to animate characters, simulate lights, and create a wide variety of visual effects * Find and fix performance problems in shaders * See how three popular game engines (Unity, UE4, Godot) handle shaders **Who This Book Is For**Programmers who are interested in writing their own shaders but do not know where to start, anyone who has ever seen shader code on a forum and wished they knew how to modify it just a little bit to fit into their own projects, and game developers who are tired of using the default shaders found in the game engines they are using. The book is especially useful for those who have been put off by existing shader tutorials which introduce complex math and graphics theory before ever getting something on the screen. It’s time to stop thinking that shaders are magical. You can use shaders to turn data into stunning visual effects, and get your hands dirty by building your own shader with this step-by-step introduction to shader development for game and graphics developers. Learn how to make shaders that move, tint, light up, and look awesome, all without cracking open a math textbook. Practical Shader Development teaches the theory behind how shaders work. The book also shows you how to apply that theory to create eye-popping visual effects. You’ll learn to profile and optimize those effects to make sure your projects keep running quickly with all their new visuals. You’ll learn good theory, good practices, and without getting bogged down in the math. Author Kyle Halladay explains the fundamentals of shader development through simple examples and hands-on experiments. He teaches you how to find performance issues in shaders you are using and then how to fix them. Kyle explains (and contrasts) how to use the knowledge learned from this book in three of the most popular game engines today. What You'll Learn Understand what shaders are and how they work Get up to speed on the nuts and bolts of writing vertex and fragment shaders Utilize color blending and know how blend equations work Know the coordinate spaces used when rendering real-time computer graphics Use simple math to animate characters, simulate lights, and create a wide variety of visual effects Find and fix performance problems in shaders See how three popular game engines (Unity, UE4, Godot) handle shaders Who This Book Is For Programmers who are interested in writing their own shaders but do not know where to start, anyone who has ever seen shader code on a forum and wished they knew how to modify it just a little bit to fit into their own projects, and game developers who are tired of using the default shaders found in the game engines they are using. The book is especially useful for those who have been put off by existing shader tutorials which introduce complex math and graphics theory before ever getting something on the screen. Front Matter ....Pages i-xxi Hello, Game Graphics (Kyle Halladay)....Pages 1-15 Your First Shaders (Kyle Halladay)....Pages 17-36 Using Textures (Kyle Halladay)....Pages 37-64 Translucency and Depth (Kyle Halladay)....Pages 65-87 Making Things Move (Kyle Halladay)....Pages 89-111 Cameras and Coordinates (Kyle Halladay)....Pages 113-128 Your First 3D Project (Kyle Halladay)....Pages 129-135 Diffuse Lighting (Kyle Halladay)....Pages 137-160 Your First Lighting Model (Kyle Halladay)....Pages 161-179 Normal Mapping (Kyle Halladay)....Pages 181-200 Cubemaps And Skyboxes (Kyle Halladay)....Pages 201-216 Lighting in Depth (Kyle Halladay)....Pages 217-248 Profiling Shaders (Kyle Halladay)....Pages 249-270 Optimizing Shaders (Kyle Halladay)....Pages 271-282 Precision (Kyle Halladay)....Pages 283-298 Writing Shaders in Unity (Kyle Halladay)....Pages 299-325 Writing Shaders in UE4 (Kyle Halladay)....Pages 327-349 Writing Shaders in Godot (Kyle Halladay)....Pages 351-368 Important Code Snippets (Kyle Halladay)....Pages 369-374 Back Matter ....Pages 375-381