About OpenGL framebuffer object, glreadpixels, and off-screen Rendering

Recently I wrote a thesis and needed to use off-screen rendering (mainly because the model is too large to draw a common window). So I read the red books and checked the relevant APIs and usage. The Chinese version of hongbao has a poor readability, and many areas of translation are obscure, but reading is faster, the main chapters are Chapter 8th and Chapter 10th (you can join Chapter 9th and then write the glsl document ). It seems that superle Le is more readable, but the hongbao book is about to continue reading it.

Because hongbao is too academic, it is better to check the online materials if you want to do it, so you can list some useful materials.

About FBO:

FBO object in OpenGL (including source code)

OpenGL frame buffer object and floating point texture

Summary of gpgpu computing concepts and basic ideas

OpenGL. framebuffer object

About glreadpixels:

Bitmap operations in OpenGL (glreadpixels, gldrawpixels, etc)

After finishing the process, summarize your experience or the previous code. :-)