I really appreciate the writing and work that was done here.

It is amazing to me how complicated these systems have become. I am looking over the source for the single triangle demo. Most of this is just about getting information from point A to point B in memory. Over 500 lines worth of GPU protocol overhead... Granted, this is a one-time cost once you get it working, but it's still a lot to think about and manage over time.

I've written software rasterizers that fit neatly within 200 lines and provide very flexible pixel shading techniques. Certainly not capable of running a cyberpunk 2077 scene, but interactive framerates otherwise. In the good case, I can go from a dead stop to final frame buffer in <5 milliseconds. Can you even get the GPU to wake up in that amount of time?