note about JPEG for anaglyph.pl sample

diff --git a/samples/anaglyph.pl b/samples/anaglyph.pl
index 1e3f704045e16033db77a1f989303e6153b313be..c097006c095b6e68f2a8a0d6ace17e1934feb6eb 100644 (file)
--- a/samples/anaglyph.pl
+++ b/samples/anaglyph.pl
@@ -139,6 +139,10 @@ Implementation based on the description at
 http://www.recordedlight.com/stereo/tutorials/ps/anaglyph/pstut04.htm
 though obviously the interactive component is missing.
 
+=head1 CAVEAT
+
+Using JPEG as the output format is not recommended.
+
 =head1 AUTHOR
 
 Tony Cook <tony@imager.perl.org>