added a tip about using the color control menu to calibrate for proper quake viewing

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@4018 d7cf8633-e32d-0410-b094-e92efae38249

diff --git a/darkplaces.txt b/darkplaces.txt
index 6dc26d16736b4a7450ef98b0739571f37ad06514..e7e17c21595e7748bed55d655395bb0256a33af8 100644 (file)
--- a/darkplaces.txt
+++ b/darkplaces.txt
@@ -12,6 +12,17 @@ I am not very good at writing documentation, so this readme is organized as a
 feature list, with information on each feature, I hope it is still adequate\r
 documentation.\r
 \r
+Tip:\r
+Visit the Color Control submenu of Options, it's near the top, fiddle with\r
+gamma (or grey level if using the color levels mode) until the grey box\r
+surrounding the white/black dither pattern matches up with the grey you see\r
+while looking at the dither from a distance, this will calibrate quake to look\r
+approximately as id Software intended, and ensure everyone sees it the same.\r
+Note: Different resolutions may be different intensities depending on monitor.\r
+Note2: ATI Radeon Catalyst 3.10 drivers seem to have a weird gamma limiting\r
+'feature' which rejects gamma settings it doesn't like, feel free to complain\r
+to ATI about this if it gets in your way (it probably will). \r
+\r
 Questions/comments/bugreports/suggestions?\r
 Send email to havoc@telefragged.com.\r
 \r