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- Added a technique to try and minimize input lag with vsync enabled: Two

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surfaces are alternately locked for read-only access each frame, forcing
  the driver to stop buffering more than one frame at a time. The input lag
  on my system doesn't seem to be as bad as it once was (I can no longer
  see it obviously with my naked eye), but turning antilag on "feels"
  slightly more responsive. The cvar d3d_antilag turns this technique on and
  off. See <http://www.xyzw.de/c120.html> for more details.


SVN r1870 (trunk)
This commit is contained in:
Randy Heit 2009-09-22 20:17:54 +00:00
commit 11fbc57178
3 changed files with 70 additions and 8 deletions
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docs/rh-log.txt
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@ -1,3 +1,12 @@
September 22, 2009
- Added a technique to try and minimize input lag with vsync enabled: Two
surfaces are alternately locked for read-only access each frame, forcing
the driver to stop buffering more than one frame at a time. The input lag
on my system doesn't seem to be as bad as it once was (I can no longer
see it obviously with my naked eye), but turning antilag on "feels"
slightly more responsive. The cvar d3d_antilag turns this technique on and
off. See <http://www.xyzw.de/c120.html> for more details.
September 22, 2009 (Changes by Graf Zahl)
- Added a check to Dehacked code which tries to set the blend color.
It must set it to 0 if the alpha is 0 to avoid problems with special