update info with lower_resolution

Signed-off-by: Mattias Andrée <maandree@operamail.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/info/blueshift.texinfo b/info/blueshift.texinfo
index 1a6aab5..a80c90c 100644
--- a/info/blueshift.texinfo
+++ b/info/blueshift.texinfo
@@ -515,6 +515,20 @@ with @code{divide_by_maximum} or @code{clip_whitepoint}
 ((red, green, blue) @click{} (red, green, blue) functions.)
 For example, instead of using @code{cmf_10deg}, you
 can use @code{lambda t : divide_by_maximum(cmf_10deg(t))}.
+
+@item lower_resolution(x, y)
+Emulate low resolution. @code{x} is the number of
+colours to emulate that each subpixel can have.
+@code{y} does the same thing as @code{x}, except
+on the output axis rather than the encoding axis.
+
+@item lower_resolution(rx, ry, gx, gy, bx, by)
+This works the same way as @code{lower_resolution(x, y)},
+except the subpixels are controlled individually.
+@code{rx} and @code{ry} are @code{x} and @code{y}
+for the red subpixel, and analogously for @code{gx}
+and @code{gy} for green, and @code{bx} and @code{by}
+for blue.
 @end table
 
 If you have an ICC profile for calibration (applied last)