Crysis is a game which is also a demo of the latest 3D hardware features.
It has several quality settings which define which features are turned on
or off.

  The program will not let you choose the highest quality setting
("very high") unless you are running the program in Vista with a DX10
compatible graphics card. It only lets you choose the second-highest
quality setting ("high"). Clearly it's trying to tell that the highest
quality setting turns on DX10-only (and thus Vista-only) features, so
they are not available in XP and DX9.

  It seems that this is a hoax. Just a marketing campaign. Yes, the
"very high" quality setting does indeed turn on several additional
rendering features, but the hoax is that these rendering features *do*
work in XP with a DX9 graphics card, and they do so at perfectly acceptable
speeds. Not allowing to choose this highest quality option unless you are
running Vista and a DX10 graphics card has nothing to do with lacking
hardware/OS support, but it's just an artificial limitation.

  The thing is, at least in the demo version of the program, you can
tweak its settings file manually and make all the "high quality" settings
to be turned on in the "high" settings, which the game allows you to choose,
and the features will work even if you are just running XP with DX9.

  So much for "Vista-only" features...

http://www.crysis-online.com/forum/index.php?topic=11837.0

-- 
                                                          - Warp

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