Shared as I have a huge respect of John Carmack for his dedication and tenacity to master 3d graphics programming and problem solving in general. Considering t

Shared as I have a huge respect of John Carmack for his dedication and tenacity to master 3d graphics programming and problem solving in general. Considering that the engine of Quake was ready only 7 years after his first commercial release of the game "Shadow Forge", this was a huge accomplish.