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by CyborgCabbage 976 days ago
What about Debug Output? https://www.khronos.org/opengl/wiki/Debug_Output
2 comments

It's better than glGetError() for sure, but not supported everywhere (e.g. macOS is stuck at 4.1 Core Profile).
Using those debuggers is like doing CPU debugging.

If at least you had posted a link to RenderDoc.