Patent Issue Delays Doom 3 Source Code Release

[wraggster]

id Software is still planning to release the Doom 3 source (http://linux.slashdot.org/story/11/08/04/2129223/doom-3-source-code-to-be-released-this-year) this year, but it's been delayed by a patent issue (http://www.phoronix.com/scan.php?page=news_item&px=MTAxNjE)that's causing John Carmack to personally rewrite some of the code. The patent issue in Doom 3 concerns theCarmack's Reverse (http://en.wikipedia.org/wiki/Shadow_volume#Depth_fail) algorithm and has led Carmack to rewrite it in the open-source Doom 3. (https://twitter.com/#!/ID_AA_Carmack/status/136614459887202305)

http://news.slashdot.org/story/11/11/16/1354222/patent-issue-delays-doom-3-source-code-release