Derivative Engines
On December 21, 1999, John Carmack of id Software released the Quake engine source code on the Internet under the terms of the GPL, allowing programmers to edit the engine and add new features. Soon programmers were releasing new versions of the engine on the net. A few of the most known engines are:
- GoldSource Engine – First engine to be created by Valve Corporation, and was used on the Half-Life series, gave rise to the Source engine.
- Tenebrae – A derivative that was the first to introduce realtime lighting and shadowing to the Quake engine.
- Telejano – A modification that adds many more features and particle effects.
- Tomaz Quake – One of the first Quake engine modifications on the net.
- Twilight Engine – Fastest of the known Quake engines, this modification is based on performance rather than extra features.
Read more about this topic: Quake Engine
Famous quotes containing the words derivative and/or engines:
“Poor John Field!—I trust he does not read this, unless he will improve by it,—thinking to live by some derivative old-country mode in this primitive new country.... With his horizon all his own, yet he a poor man, born to be poor, with his inherited Irish poverty or poor life, his Adam’s grandmother and boggy ways, not to rise in this world, he nor his posterity, till their wading webbed bog-trotting feet get talaria to their heels.”
—Henry David Thoreau (1817–1862)
“America is like one of those old-fashioned six-cylinder truck engines that can be missing two sparkplugs and have a broken flywheel and have a crankshaft that’s 5000 millimeters off fitting properly, and two bad ball-bearings, and still runs. We’re in that kind of situation. We can have substantial parts of the population committing suicide, and still run and look fairly good.”
—Thomas McGuane (b. 1939)