If this is your thing, I'd recommend reading the Doom Engine Black Book - pdf available on Fabiens site but the physical book is worth having! https://fabiensa

If this is your thing, I'd recommend reading the Doom Engine Black Book - pdf available on Fabiens site but the physical book is worth having! https://fabiensanglard.net/gebbdoom/index.html https://fabiensanglard.net/gebbdoom/index.html