General OpenGL

General OpenGL Category Page

General Information

Articles with general OpenGL information.

• FAQ: frequently asked questions
• OpenGL Objects: The standard OpenGL object model.
• Creating an OpenGL Context
• Get Context Info: Getting Information From GL
• Color
• OpenGL and multithreading
• GL Error Codes
• Debugging Tools
• Common Mistakes
• Common Mistakes: Deprecated
• Legacy OpenGL: why it is better to use modern GL rather than legacy GL

Rendering

These articles explain topics directly related to rendering graphics with OpenGL.

OpenGL concepts

• Textures
  • Image Formats
  • Multisample Textures
  • Cubemap Textures
  • Array Textures
  • Buffer Textures
• OpenGL Shading Language aka GLSL.
  • The Language
  • Types
    • Samplers
  • Type Qualifiers
    • Uniforms
• Buffer Objects
  • Pixel Buffer Object
  • Uniform Buffer Object
• Framebuffer
  • Framebuffer Object
  • Depth Buffer
• Sync Object
• Query Object

The OpenGL pipeline, top to bottom.

• Rendering Pipeline Overview
• Vertex Specification
• Vertex Rendering
• Primitive
• Vertex Shader
• Tessellation Shader
• Geometry Shader
• Transform Feedback
• Rasterization
  • Multisampling
• Fragment Shader
• Per-sample operations.
  • Depth Test
  • Blending: Transparency and Translucency.
    • Transparency Sorting

• Drawing Lines over Polygons: Using glPolygonOffset.

Deprecated Functionality

The following sections are deprecated in version 3.0 and removed in 3.1 and above. You should not rely on this functionality going forward.

• Fixed Function Texture Binding: See GLSL sampler binding instead.
• Texture Combiners: See The OpenGL Shading Language instead.
• Vertex Arrays: See Buffer Object and Vertex Specification.
• Vertex Formats: See Vertex Array Object
• Shadow Mapping without shaders
• Fonts
• Vertex Transformation
• Selection mechanism
• p-buffer
• VBO - more
• VBO - just examples
• Mathematics of glTexGen
• Viewing and Transformations : Answers about Transformations.