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Miloslav Ciz 2025-03-18 22:51:37 +01:00
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doom.md
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@ -25,6 +25,7 @@ Some **[interesting](interesting.md) things** about Doom:
- Someone created a Doom system monitor for [Unix](unix.md) systems called [psDooM](psdoom.md) where the monsters in game are the operating system [processes](process.md) and killing the monsters kills the processes.
- In 2024 some researchers made an experimental completely [neural network](neural_net.md) [AI](ai.md) game engine (called GameNGen) and implemented Doom with it -- basically they just made the network play Doom for a long time and so trained it to estimate the next frame from current input and a few previous frames. It can be played at 20+ FPS and looks a lot like Doom but it's also "weird", glitching, and having little persistence (it only remembers a few seconds back). Still pretty impressive.
- The Crispy Doom engine adds `GOOBERS` cheat code which makes all floors and ceilings the same height, effectively making the game a flat [wolf3d](wolf3d.md)-style game.
- By simple modification of the engine (making the [pseudorandomness](pseudorandom.md) generator always return the same value, e.g. [zero](zero.md)) it's possible to essentially turn off all randomness and the game then becomes quite weird. For example the "melting" screen effect turn to just a screen swipe, strobe light effects disappear, weapon fire loses any spread and all monsters always make the same death sound.
- Someone (kgsws) has been [hacking](hacking.md) the ORIGINAL Doom engine in an impressive way WITHOUT modifying the source code or the binary, rather using [arbitrary code execution](arbitrary_code_execution.md) bug; he added very advanced features known from newer source ports, for example an improved 3D rendering algorithms allowing geometry above geometry etc. (see e.g. https://yt.artemislena.eu/watch?v=RdbRPNPUWlU). It's called the Ace engine.
- Doom sprites were made from photos of physical things: weapons are modified photos of toys, enemies were made from clay and then photographed from multiple angles (actually a great alternative to [3D modeling](3d_model.md) that's less dependent on computers and produces more realistic results).
- The strongest weapon in the game is name BFG9000, which stands for "big fucking gun".