Module darkplaces: Change committed

[havoc at icculus.org]

Commiter   : havoc
CVSROOT    : /cvs/cvsroot/twilight
Module     : darkplaces
Commit time: 2007-03-29 00:40:00 UTC

Log message:

added r_shadow_usenormalmap cvar which allows you to disable directional shading on rtlights, looking a bit more like glquake lights, this also renders somewhat faster so it may be of use as a performance tweak for some cards
added an optimized ambient-without-diffuse path in the GLSL shader to help r_shadow_usenormalmap 0 performance

Modified files:
     r_shadow.c render.h gl_rmain.c
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