The literature conveniently neglects to mention how fiddly and difficult it is to implement that stuff reliably. Debugging the rendering pipeline is not exactly

The literature conveniently neglects to mention how fiddly and difficult it is to implement that stuff reliably. Debugging the rendering pipeline is not exactly easy, especially when the data is not just positions and colors, but more abstract stuff. Also, there's tons of edge cases that need hacks and workarounds, crazy driver bugs etc...