General OpenGL

General Information

Articles with general OpenGL information.

• FAQ: frequently asked questions
• OpenGL Objects: The standard OpenGL object model.
• Creating an OpenGL Context
• glGetString: Getting Information From GL
• Color
• OpenGL and multithreading
• GL error codes
• Debugging Tools
• Common Mistakes

Rendering

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

• Rendering Pipeline Overview
• Rasterization
  • Blending: Transparency and Translucency.
  • Transparency Sorting
• Buffer Objects
  • Vertex Buffer Object
• Vertex Array Object
• Framebuffer
  • Framebuffer Objects
  • Multisampling
  • Depth Buffer
• Textures
  • Multisample Textures
  • Cubemap Textures
  • Array Textures
• 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.

• 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
• gluPerspective code
• gluProject and gluUnProject code
• gluLookAt code
• Fonts
• Vertex Transformation
• Selection mechanism
• p-buffer
• VBO - more
• VBO - just examples
• Mathematics of glTexGen
• Viewing and Transformations : Answers about Transformations.