OpenGLプログラミング

OpenGL Programming ブックへようこそ。 OpenGL は 3D グラフィックスの描画に使用するAPIです。 OpenGL はプログラミング言語ではありません。 OpenGL アプリケーションは、一般的に、C言語またはC++で書かれます。 OpenGL の役割は、魅力的で、リアルな3Dグラフィックスを、最小限の労力で描画できるようにすることです。 APIは通常、GPUと連携をとってハードウェアアクセラレーションレンダリングを実現するために使用されます。

このwikibookへの参加や貢献は自由で、奨励されています：フリードキュメンテーションの精神で書かれていて、全人類に帰属するものです。気軽に印刷したり、学校やプロフェッショナルクラスに教えたり、テキストを改善し、コメントを書き、新しいセクションを執筆してください。

私たちは貢献者を探しています。 OpenGLについて知っていることがあれば、お気軽にコメントを残したり、TODOセクションを拡張したり、新しいセクションを書いてくださいね！

Wikipedia

ウィキペディアにOpenGLの記事があります。

はじめに[編集]

OpenGLのセットアップ[編集]

Installation on GNU/Linux
Installation on Macintosh
Installation on Windows with Code::Blocks
Installation for Android NDK development
- with a GLUT-like wrapper to follow the exercises
Installation for iPhone development
Installing GLUT

Modern OpenGL[編集]

"Modern" OpenGL の範囲は、 OpenGL 2.1+, OpenGL ES 2.0+,および WebGLで、プログラマブルなパイプラインやシェーダが付属するものです。

The basics arc[編集]

01	チュートリアル 01: newcomer's introduction, first dive into shaders	02	チュートリアル 02: adding more robustness to our code, transparency
03	チュートリアル 03: passing information to shaders: attributes, varying and uniforms	04	チュートリアル 04: transformation matrices: positioning and rotating
05	チュートリアル 05: adding the 3rd dimension: a cube, plus a camera	06	チュートリアル 06: textures: displaying a wooden cube
07	OBJ format: loading Suzanne the monkey from Blender	08	Navigation: navigate in 3D space and manipulate objects in our model viewer

Tutorial_drafts: ideas and notes for upcoming tutorials

The lighting arc[編集]

This series of tutorials is a C++ port of the GLSL wikibook Basic Lighting tutorials.

01	Diffuse Reflection: about per-vertex diffuse lighting and multiple light sources of different kinds	02	Specular Highlights: about per-vertex lighting
03	Two-Sided Surfaces (about two-sided per-vertex lighting)	04	Smooth Specular Highlights (about per-pixel lighting)
05	Two-Sided Smooth Surfaces (about two-sided per-pixel lighting)	06	Multiple Lights (about for-loops for handling multiple light sources)

This series of tutorials is a C++ port of the GLSL wikibook Basic Texturing tutorials.

01	Textured Spheres: about texturing a sphere	02	Lighting Textured Surfaces: about textures for diffuse lighting
03	Glossy Textures: about gloss mapping	04	Transparent Textures: about using alpha textures for discarding fragments, alpha testing, and blending
05	Layers of Textures: about multitexturing

This series of tutorials is a C++ port of the GLSL wikibook tutorials about Textures in 3D.

01	Lighting of Bumpy Surfaces: about normal mapping	02	Projection of Bumpy Surfaces: about parallax mapping
03	Cookies: about projective texture mapping for shaping light	04	Light Attenuation: about texture mapping for light attenuation and lookup tables in general
05	Projectors: about projective texture mapping for projectors

There are more tutorials to port at the GLSL wikibook!

The scientific arc[編集]

01	Graph 01: plotting a simple function, using vertex buffer objects and point sprites	02	Graph 02: plotting a graph from data in a texture
03	Graph 03: plotting borders and axes, clipping	04	Graph 04: plotting a three-dimensional graph
05	Graph 05: plotting a surface with hidden line removal

And more to come.

Selected topics[編集]

01	Arcball: intuitive object rotation with the mouse	02	Bounding box: draw a cube around your object for editing or debugging purposes
03	2D-on-3D: hardware-accelerated 2D programming	04	Video Capture: capture your animation using apitrace (C++) or JavaScript (WebGL)
05	Tea time: generating a HD teapot from Bézier surfaces	06	Stencil buffer: masking and combining
07	Quadrics: creating simple shapes with a bit of maths	08	Basic text: rendering text using the FreeType library
09	Optimized text rendering: using a texture atlas containing all glyphs	10	Object selection: unprojecting coordinates and object identification using the stencil buffer
11	Anti-Aliasing: smoothing lines

The post-processing arc[編集]

01

Concepts: how to perform full-screen post-processing, first example with a simple animated wave

02

???: next effect to be decided!

Mini-portal[編集]

This series shows how to implement a teleportation system similar to Valve's Portal, step-by-step, using OpenGL.

01		Mini-Portal: a first working see-through portal	02		Mini-Portal Smooth: smooth transition, understanding the camera
03		Mini-Portal Recursive: recursive portals - display portals within portals	04		Mini-Portal Optimization: optimization with scissors

Glescraft[編集]

This series shows how to render a voxel based world, similar to Minecraft.

01	Glescraft 1: basic voxel rendering	02	Glescraft 2: removing unnecessary voxel faces
03	Glescraft 3: texturing, lighting, fog, transparency	04	Glescraft 4: first person camera controls
05	Glescraft 5: drawing only what is on screen	06	Glescraft 6: adding and removing voxels
07	Glescraft 7: using geometry shaders

Using the accumulation buffer[編集]

01		Tutorial 01: motion blur	02		Tutorial 02: full-screen supersampling anti-aliasing
03		Tutorial 03: depth of field	04		Tutorial 04: order-independent transparency

Cutting-edge OpenGL[編集]

If you do not need to target mobile devices or the web, you can upgrade to OpenGL 4.x. It notably introduces 3 new kinds of shaders: Geometry, Tessellation Control and Tessellation Evaluation.

01

Tutorial 01: modify and create vertices on the fly with geometry shaders

02

Tutorial 02: dynamic mesh quality with tesselation

and lots of other features.

Code quality[編集]

01

Debugging: tips to help debug your OpenGL code

02

Performances: measuring and improving your application perfs

Appendices[編集]

OpenGL ES 2.0 Overview: OpenGL ES 2.0 (OpenGL for Embedded Systems 2.0) concepts and its differences to normal OpenGL
Migrating from 1.x to 2.x: how to upgrade your code to use modern OpenGL
Glossary: what do all those new weird words mean?
APIs, Libraries and acronyms: how all acronyms relate to each others
OpenGL Shading Language: elements of GLSL programming
Shaders reference: input and output variables list
Team: contributors to this wikibook
Download code: Gitorious wikibooks-opengl project

Legacy OpenGL 1.x[編集]

"Legacy" OpenGL is about OpenGL 1.x and OpenGL ES 1.x, with a fixed pipeline and no shaders.

Starting Tutorial[編集]

Setting Up A Programming Environment On Windows
Setting Up OpenGL In The Programming Environment
Drawing Primitives
1. Immediate Mode
2. Display Lists
3. Vertex Arrays
Basic Transformations
1. Translation
2. Rotation
3. Scaling
4. Custom Transformations

Basics[編集]

Intermediate[編集]

Advanced[編集]

Appendices[編集]

Coordinate Transformations
Understanding Transformation Matrices
OpenGL Library Reference. functions and type reference for gl.h glu.h and glut.h
Why OpenGL Exists and What It's Good For
Migrating from 1.x to 2.x: how to upgrade your code to use modern OpenGL

Wikibooks[編集]

Related WikiBooks:

GLSL Programming : wikibook on the use of the OpenGL Shading Language (GLSL) in Unity 3 and Blender 2.5, with much information on lighting and texturing
Blender 3D: Noob to Pro: comprehensive book on using the Blender 3D modeling environment

Ports[編集]

The following websites provide conversion of the tutorials to other programming languages or platforms:

https://github.com/alihelmy/lwjglTutorial : port to Lightweight Java Game Library (LWJGL) (blog)
http://littlefootlandmines.blogspot.com/search/label/opengl%20tutorials : not really a port, but commented, progressive version of the tutorials code as the author follows them

Freely-licensed documentation and samples[編集]

Learning Modern 3D Graphics Programming: another modern OpenGL tutorial, requiring v3.3 or later, MIT license (source repository)
Learn OpenGL ES: Detailed, step-by-step OpenGL ES tutorials in Java for Android, and a bit of WebGL as well, CC BY-SA 3.0 license (source repository - Apache License 2)
OpenGL Samples Pack: written in C++ based on the "core profile" specifications, aimed at easing upgrades to new OpenGL versions and features, MIT license (source repository)
Introduction and examples for OpenGL 3.3: GFDL license
A modern OpenGL FAQ: GFDL license
OpenGLContext Python Tutorials: basic tutorials using PyOpenGL (BSD-style licenses)
Paul's projects: OpenGL 1.x, two tutorials on shadow mapping and bump mapping, with code under the MIT license
WebGL:
- Gregg Tavares’ WebGL articles: detailed 2D and 3D basics with emphasing on matrix operations; lots of diagrams and interactive animations (code - MIT license)
- WebGL at Mozilla Developer Network: WebGL overview, including embedding videos; CC BY-SA for articles, MIT and public domain for code
- three.js: impressive collection of demos using the three.js WebGL framework; code is MIT but models/data may be non-free

Non-freely-licensed documentation[編集]

NeHe's OpenGL tutorial: OpenGL 1.x
Collection of OpenGL fundamentals tutorials using C++ and Windows API: OpenGL 1.x
ZeusCMD OpenGL Tutorials: OpenGL 1.x
OpenGL Programming Examples: OpenGL 1.x,

OpenGLプログラミング

はじめに[編集]

OpenGLのセットアップ[編集]

Modern OpenGL[編集]

The basics arc[編集]

The lighting arc[編集]

The scientific arc[編集]

Selected topics[編集]

The post-processing arc[編集]

Mini-portal[編集]

Glescraft[編集]

Using the accumulation buffer[編集]

Cutting-edge OpenGL[編集]

Code quality[編集]

Appendices[編集]

Legacy OpenGL 1.x[編集]

Starting Tutorial[編集]

Basics[編集]

Intermediate[編集]

Advanced[編集]

Appendices[編集]

Wikibooks[編集]

Ports[編集]

Freely-licensed documentation and samples[編集]

Non-freely-licensed documentation[編集]

Websites[編集]

Further reading[編集]