--- ray/doc/notes/ReleaseNotes	2005/01/18 00:33:16	1.62
+++ ray/doc/notes/ReleaseNotes	2005/04/19 01:15:06	1.71
@@ -1393,3 +1393,49 @@ Added -pd option to handle depth-of-field blur in rpic
 that the view directon (-vd option) include focal distance information,
 which is now preserved by the various view file routines, and reported
 by the vwright command.
+
+Added DBLUR variable to ranimate and pmdblur script to handle simultaneous
+motion and depth-of-field blurring.  Thanks to Visarc for funding this work.
+
+Added setting of focus distance in rvu ("focus" command) and rholo
+('f'/"frame" command).
+
+Changed default remote shell in ranimate to "ssh" rather than "rsh",
+which has been abandoned on most Unix systems due to security issues.
+
+Fixed behavior of source primitive using illum with no alternate
+material.  These now become transparent so one can see the sky or
+light-probe background for use in image-based lighting.  Previously,
+the user needed to specify the background glow as the alternate
+material for a distant illum source to behave properly.  (This still
+works.)
+
+Fixed some minor problems and inconsistencies with 16-bit/channel
+TIFF i/o in ra_tiff.
+
+Created mksource program to generate distant sources for improved
+image-based lighting with light probes.
+
+Changed ambient calculation so that -ad will not limit recursion
+depth, and a minimum of 27 samples will be sent out for each stored
+ambient value, or 3 samples if -aa is 0 (caching off).
+
+Added -oM option to rtrace to report material (rather than modifier)
+for cases where actual material is aliased or further up modifier chain.
+
+Rearranged the way ray contributions are computed so that it might be
+possible to use rtrace to derive daylight coefficients and optical
+transfer functions.  The new -oTW option of rtrace produces color
+contribution weights for each ray, which combined with the -ti (or -tI)
+option permits the contribution of selected surfaces or sources to
+be determined.  Using the -oTW option, one should also specify
+options "-dt 0 -aa 0 -as 0" for optimal results.  In particular,
+one cannot expect reasonable tallies with -ab >= 1 and irradiance
+caching on (-aa > 0).
+
+The same code modifications included a change to the indirect computation
+with caching switched off (-aa 0).  Whereas before, the number of secondary
+rays after the first bounce were half of the previous generation, they are
+now determined by the surface reflectance, making for a better and faster
+calculation.  It should now be possible to compute many bounces with -aa 0,
+which used to be prohibitively expensive.