From the Carmack worship story: “So Carmack was not the first person to think of using BSP trees in a real-time graphics simulation. Of course, it’s one thing t

From the Carmack worship story: “So Carmack was not the first person to think of using BSP trees in a real-time graphics simulation. Of course, it’s one thing to anticipate that BSP trees might be used this way and another thing to actually do it. But even in the implementation Carmack may have had more guidance than is commonly assumed.”