Building Quality Shaders for Unity (R) (häftad)

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Format: Häftad (Paperback / softback)
Språk: Engelska
Antal sidor: 734
Utgivningsdatum: 2022-10-18
Upplaga: 1st ed.
Förlag: APress
Illustratör/Fotograf: 346P271 illus 222 Illustrations, color 49 Illustrations, black and white X 222 illus in col
Illustrationer: 251 Illustrations, color; 21 Illustrations, black and white; XX, 734 p. 272 illus., 251 illus. in co
Dimensioner: 252 x 178 x 48 mm
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Antal komponenter: 1
Komponenter: 1 Paperback / softback
ISBN: 9781484286517

Building Quality Shaders for Unity (R)

Using Shader Graphs and HLSL Shaders

av Daniel Ilett

Häftad, Engelska, 2022-10-18

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Understand what shaders are and what they're used for: Shaders are often seen as mystical and difficult to develop, even by skilled programmers, artists, and developers from other game design disciplines. This book dispels that idea by building up your shader knowledge in stages, starting with fundamental shader mathematics and how shader development mindset differs from other types of art and programming, and slowly delves into topics such as vertex and fragment shaders, lighting, depth-based effects, texture mapping, and Shader Graph. This book presents each of these topics with a comprehensive breakdown, the required theory, and some practical applications for the techniques learned during each chapter. The HLSL (High Level Shading Language) code and Shader Graphs will be provided for each relevant section, as well as plenty of screenshots. By the end of this book, you will have a good understanding of the shader development pipeline and you will be fully equipped to start making your own aesthetic and performant shader effects for your own games! You Will Learn To* Use shaders across Unity's rendering pipelines* Write shaders and modify their behavior with C# scripting* Use Shader Graph for codeless development* Understand the important math behind shaders, particularly space transformations* Profile the performance of shaders to identify optimization targets Who Is This Book For This book is intended for beginners to shader development, or readers who may want to make the jump from shader code to Shader Graph. It will also include a section on shader examples for those who already know the fundamentals of shaders and are looking for specific use cases.

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Daniel Ilett is an ambitious and motivated PhD student at the University of Warwick. He is a passionate game developer, specialising in shaders and technical art. He publishes a range of educational and tutorial content, including videos and written work, aimed at beginners and intermediate developers. He also does freelance work on shaders and visual effects for games.

Chapter 1: Introduction to Shaders in UnitySub-topics:* Brief overview of shader fundamentals* Unity's built-in pipeline* URP (Universal Render Pipeline)* HDRP (High Definition Render Pipeline) Chapter 2: Maths for Shader DevelopmentSub-topics:* Vectors in 2D and 3D* Dot product, cross product, and other vector operations* Matrices* Multiplication, transpose, inverse, and common matrix operations* Important spaces in computer graphics* Homogeneous coordinate systems* Transformation between spaces Chapter 3: Your Very First ShaderSub-topics:* The shader pipeline, and data flow* ShaderLab, SubShaders and Fallbacks* Shader Tags* The appdata struct: Input to the vertex shader* The vertex shader* The v2f struct: Data passed between the vertex and fragment shader* The fragment shader Chapter 4: Shader GraphSub-topics:* The argument for node-based editors* The vertex and fragment stages* Shader nodes & properties* Your first Shader Graph Chapter 5: Textures, UV Coordinates & Normal MappingSub-topics:* What is texture mapping?* What are UV coordinates?* Scaling, rotating and offsetting UVs* Sampler states* Normal mapping & tangent space Chapter 6: TransparencySub-topics:* Transparency vs opacity* Alpha-blended transparency* Sorting* Screen-door ("dithered") transparency Chapter 7: The Depth Buffer* What is the depth buffer?* Depth-testing and culling* Depth-based shader effects Chapter 8: More Shader FundamentalsSub-topics:* Shader keywords and variants* Single- and multi-pass shaders* GrabPass and UsePass* Unity's standard shader libraries Chapter 9: Lighting & ShadowsSub-topics:* Lighting theory: Diffuse, specular, ambient, and Fresnel light* Phong shading* Physically based rendering* Shadow casting Chapter 10: Image Effects & Post ProcessingSub-topics:* Post Processing in the Built-in pipeline, URP and HDRP* Convolution kernels, Gaussian blur and multi-pass effects.* Edge detection with a Sobel kernel* Better edge detection using the depth texture and normal texture Chapter 11: Advanced ShadersSub-topics:* Geometry shaders: adding or modifying vertices* Tessellation shaders: subdividing a mesh* Building an LOD system with tessellation shaders* Compute shaders: arbitrary computation on the GPU Chapter 12: Profiling & OptimizationSub-topics:* The Unity Profiler and Frame Debugger* Branching in shaders* Avoiding overdraw* Multi-material objects* Batching Chapter 13: Shader Recipes For Your GamesSub-topics:* World-space reconstruction in post processing shaders* Custom lighting: cel-shading (toon shading)* Vertex displacement - realistic water (Gerstner waves)* Refraction by modifying the framebuffer* Interactive snow layers (modifying the height of a mesh based on gameplay actions)* Holograms using emissive colour* Using Voronoi noise to make marble