https://bugs.freedesktop.org/show_bug.cgi?id=31013
--- Comment #8 from Tomasz Czapiewski xeros@irc.pl 2010-10-21 12:59:21 PDT --- Game developers have just checked that the same shader works on Windows on the same chipset as mine and are suggesting that it might be "off-by-one in counting the indirections".