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OpenGLプログラミング

出典: フリー教科書『ウィキブックス(Wikibooks)』

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
Wikipedia
ウィキペディアOpenGLの記事があります。

はじめに[編集]

  1. この文書について
  2. OpenGLの歴史と進化

OpenGLのセットアップ[編集]

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]

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]

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

Basics[編集]

  1. Structure of a Typical OpenGL Application
  2. Drawing Rectangles
  3. Drawing Lines and Points
  4. Drawing Simple 2D Shapes
  5. OpenGL Naming Conventions
  6. Using Color
  7. Viewing Transformations
  8. Drawing Simple 3D Objects
  9. Perspective versus Orthographic Projections

Intermediate[編集]

  1. Smoothing Polygons with Normals
  2. Adding Lights
  3. Using Materials
  4. Using Textures
  5. Using Mipmaps
  6. Drawing Complex Polygons Using Tessellation

Advanced[編集]

  1. Optimizing OpenGL Code
  2. Drawing Shadows
  3. Drawing Using Quadrics
  4. Drawing Using NURBS and Curves
  5. Ambient Occlusion

Appendices[編集]

  1. Coordinate Transformations
  2. Understanding Transformation Matrices
  3. OpenGL Library Reference. functions and type reference for gl.h glu.h and glut.h
  4. Why OpenGL Exists and What It's Good For
  5. 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:

Freely-licensed documentation and samples[編集]

Non-freely-licensed documentation[編集]

Websites[編集]

Further reading[編集]

  • OpenGL Architecture Review Board, et al: OpenGL Programming Guide: The Official Guide to Learning OpenGL, Version 2, Fifth Edition, Addison-Wesley, ISBN 0-321-33573-2
  • OpenGL Architecture Review Board, et al: OpenGL Reference Manual: The Official Reference Document to OpenGL, Version 1.4, Addison-Wesley, ISBN 0-321-17383-X
  • Wright, Richard S. Jr and Lipchak, Benjamin: OpenGL SuperBible, Third Edition, Sams Publishing, ISBN 0-672-32601-9

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