IdTech4 Open Source

id Software has a long history making the code to their engines open source after a while. Even after being sold to Zenimax, this trend continued. Here is a small list:

Todo: include here list of titles that were already released.

So there is hope that idTech4 (the engine behind Doom 3 and Quake 4) will also be open sourced. For The Dark Mod this means that we can fix a long list of issues that are currently not possible.

Here is a small, incomplete list, in no particular order:

Category	Issue	Possible outcome
Sound	EAX does not work under Linux.	Works there, too.
Graphic	The lightgem needs to render to a texture and transfer this texture back to the CPU via a complicated in-memory file scheme.	Performance increase.
Graphic	No instancing. Multiple instances of the same model are all rendered one by one, instead of uploading it once and then telling the graphic card to render them all in one go.	Performance increase.