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WebGL beginner's guide : become a master of 3D web programming in WebGL and JavaScript /
Become a master of 3D web programming in WebGL and JavaScript.
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Otros Autores: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Birmingham, U.K. :
Packt Pub.,
Ã2012.
|
| Colección: | Learn by doing : less theory, more results
Community experience distilled |
| Temas: | |
| Acceso en línea: | Texto completo (Requiere registro previo con correo institucional) |
Tabla de Contenidos:
- Cover; Copyright; Credits; About the Authors; Acknowledgement; About the Reviewers; www.PacktPub.com; Table of Contents; Preface; Chapter 1: Getting Started with WebGL; System requirements; What kind of rendering does WebGL offer?; Structure of a WebGL application; Creating an HTML5 canvas; Time for action
- creating an HTML5 canvas; Defining a CSS style for the border; Understanding canvas attributes; What if the canvas is not supported?; Accessing a WebGL context; Time for action
- accessing the WebGL context; WebGL is a state machine; Time for action
- setting up WebGL context attributes
- Using the context to access the WebGL APILoading a 3D scene; Virtual car showroom; Time for action
- visualizing a finished scene; Summary; Chapter 2: Rendering Geometry; Vertices and Indices; Overview of WebGL's rendering pipeline; Vertex Buffer Objects (VBOs); Vertex shader; Fragment shader; Framebuffer; Attributes, uniforms, and varyings; Rendering geometry in WebGL; Defining a geometry using JavaScript arrays; Creating WebGL buffers; Operations to manipulate WebGL buffers; Associating attributes to VBOs; Binding a VBO; Pointing an attribute to the currently bound VBO
- Enabling the attributeRendering; The drawArrays and drawElements functions; Putting everything together; Time for action
- rendering a square; Rendering modes; Time for action
- rendering modes; WebGL as a state machine: buffer manipulation; Time for action
- enquiring on the state of buffers; Advanced geometry loading techniques: JavaScript Object Notation (JSON) and AJAX; Introduction to JSON
- JavaScript Object Notation; Defining JSON-based 3D models; JSON encoding and decoding; Time for action
- JSON encoding and decoding; Asynchronous loading with AJAX; Setting up a web server
- Working around the web server requirementTime for action
- loading a cone with AJAX + JSON; Summary; Chapter 3: Lights!; Lights, normals, and materials; Lights; Normals; Materials; Using lights, normals, and materials in the pipeline; Parallelism and the difference between attributes and uniforms; Shading methods and light reflection models; Shading/interpolation methods; Goraud interpolation; Phong interpolation; Light reflection models; Lambertian reflection model; Phong reflection model; ESSL-OpenGL ES Shading Language; Storage qualifier; Types; Vector components; Operators and functions
- Vertex attributesUniforms; Varyings; Vertex shader; Fragment shader; Writing ESSL programs; Goraud shading with Lambertian reflections; Time for action
- updating uniforms in real time; Goraud shading with Phong reflections; Time for action
- Goraud shading; Phong shading; Time for action
- Phong shading with Phong lighting; Back to WebGL; Creating a program; Initializing attributes and uniforms; Bridging the gap between WebGL and ESSL; Time for action
- working on the wall; More on lights: positional lights; Time for action
- positional lights in action; Nissan GTS example; Summary