> So programming OpenGL, happens to be like trying to write web applications, while trying to make the code portable and bug free (with workarounds) across all

> So programming OpenGL, happens to be like trying to write web applications, while trying to make the code portable and bug free (with workarounds) across all graphic cards out there. And it's much harder to test because you have to find the outdated graphic card, with the outdated driver, and have a machine where you can plug the offending card.