DOOM 3 source port
dhewm3 is a DOOM 3 GPL source port.
Unlike the original DOOM 3, dhewm3 uses:
- SDL for low level OS support, OpenGL and input handling
- OpenAL for audio output, all OS specific audio backends are gone
- OpenAL EFX for EAX reverb effects
- Better support for widescreen (and arbitrary display resolutions)