1. Course notes

Initialization

[[OpenGL|1. Welcome to OpenGL]]
[[4. Vertex Buffers and Draw a Triangle in OpenGL]]
[[5. Vertex Attributes and Layouts in OpenGL]]
[[5.5 A workflow of generating a graphics]]

Shader

[[6. How Shaders Work in OpenGL]]
[[7. Writing a Shader in OpenGL]]

2. Useful tools

The recommended doc for OpenGL development