Image talk:Familytree11.png

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There is missing Medal Of Honor and Call Of Duty on this tree. They're using q3 engine.

1 Half-Life
- 1.1 Source
2 007: Nightfire
3 Xreal
4 Quake2 -> Quake3
5 Medal of Honor and Call of Duty
6 Gloom
7 Tremulous
8 Linking of Quake 1 GPL source projects

[edit] Half-Life

Half-life is listed as starting from the QuakeWorld source code, when actually Valve started modifying the Quake source before Quakeworld existed. The Half-Life engine should be an offshoot of the original Quake rather than QuakeWorld.

[edit] Source

The way I understand the purpose of the diagram, it shows ancestry of implementation, not of game content or concept. As far as I know, the Source engine has been essentially written from scratch (otherwise Valve would have a hard time licensing it to others on their terms), so it does not belong on this diagram.

Carmack himself has stated that the source engine contains old Quake code, see his Qcon 2005 keynote address or his blog (google it) for examples. Shame Carmack is a doofus o_O.

[edit] 007: Nightfire

In this image, 007: Nightfire is listed as being an offshoot of the Quake 3 engine. In fact, we used the Half-Life engine as a base, and rewrote the renderer. I was on the development team for this game.

[edit] Xreal

xreal (xreal.sourceforge.net) is shown as a descendant of Quake 2, when it is infact a fork of Q3. 81.106.113.213 00:52, 13 March 2006 (UTC)

Or maybe not just got this in IRC:

 <AnthonyJ_> kp, well, xreal is supposed to be a game, which is using the qrazor-fx engine, aiui. 
 qrazorfx-ii was based on q2 (rewritten into C++ and with d3 capabilities), while qrazorfx-iii is based on q3

81.106.113.213 01:05, 13 March 2006 (UTC)

[edit] Quake2 -> Quake3

Is the linkage between Quake2 and Quake3 accurate? I recall something about John Carmack scrapping a lot of Quake2 and basing the Q3 engine on QuakeWorld. Can anyone confirm or refute this?

[edit] Medal of Honor and Call of Duty

Shouldn't these games and their sequels be represented on the image too?

[edit] Gloom

Shouldn't Gloom (game mod), a mod of Quake 2, be there in the image?

[edit] Tremulous

The Tremulous article says that it uses the GPL Quake 3 engine. —midg3t 04:47, 24 October 2006 (UTC)

[edit] Linking of Quake 1 GPL source projects

ZQuake is based on QuakeForge. It's author "Tonik" was a member of QuakeForge but wasn't happy with the restructuring being done that broke his Win32 builds so he forked off a QuakeWorld-only Win32 build.

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