The long awaited release of the Doom 3 code, a traditional id Software move (i.e. releasing the full source code of a game based on an older version of their engine once the new one -Rage's id Tech 5 on this occasion - has been released) is now delayed.
This is because it appears that the game uses a patented graphics technique called stencil shadowing that was co-written by John Carmack and Creative Labs (the technique was called Carmack's Release). Unfortunately it appears Creative Labs legally owns the full patent for this rather than John Carmack so he may have to rewrite certain parts of the Doom 3 code before it can become available (according to a Twitter post of his).
This is because it appears that the game uses a patented graphics technique called stencil shadowing that was co-written by John Carmack and Creative Labs (the technique was called Carmack's Release). Unfortunately it appears Creative Labs legally owns the full patent for this rather than John Carmack so he may have to rewrite certain parts of the Doom 3 code before it can become available (according to a Twitter post of his).
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