Suggestion: Debuggers

[codecat]

The chapter about framebuffers suggests this:

Try changing the clear color of the scene and reading it back using glReadPixels to check if the scene renders properly to the new framebuffer.

Why not add a note somewhere about graphics debuggers? For example, I've been learning a lot from just looking at the output of CodeXL:

I don't have to worry about writing extra code with glReadPixels, I can just look at my debugger to make sure it's rendered okay. I guess using glReadPixels is a good excercise in itself, though.

[Overv]

Yeah, I really regret not writing about glDebugMessageCallback​ and using CodeXL/RenderDoc, but I feel that it is a little bit too late to integrate that now.