[ViewVC] Diff of: radiance/ray/doc/notes/ReleaseNotes

Comparing ray/doc/notes/ReleaseNotes (file contents):
Revision 1.75 by greg, Wed May 25 04:44:25 2005 UTC vs.
Revision 1.100 by greg, Mon Sep 19 02:23:58 2005 UTC

+Fixed bug that caused incorrect reporting of non-surface in set when
+mixing meshes and instances.  (Thanks to Jack de Valpine for discovery.)
-<
+Fixed innacuracy in calculation of diffuse transmission in the presence
->
+Fixed inaccuracy in calculation of diffuse transmission in the presence
+of pure specular (Fresnel reflection) using "trans" material.  Thanks
+to Christoph Reinhart for pointing out the error.
+Created rtcontrib program for computing ray contribution coefficients.
+This tool may be used to do standard optical ray tracing or daylight
+coefficient calculations for annual simulations, among other uses.
-+
-+
+Added tilde ('~') output option as part of the -o* specification of
-+
+rtrace.  This permits ray trees to be parsed more easily in binary
-+
+output mode, as needed by rtcontrib.
-+
-+
+Implemented Russian roulette ray termination with -lr <= 0.
-+
+Made -lr -10 the default in rtcontrib.
-+
-+
+Made rtcontrib -f option search RAYPATH directories.
-+
-+
+Made it so -o option of rtcontrib can pipe -o output to a command.
-+
-+
+Added -if and -of options to total for binary i/o (following rcalc mold).
-+
-+
+Switched default options in rtrace to use Russian roulette.  (Rpict and rvu
-+
+still use biased ray termination.)
-+
-+
+Added rtcontrib -r option to recover partial output.
-+
-+
+Added -u rendering option for pure Monte Carlo sampling.
-+
+(Got rid of -DMC compile option, which this makes superfluous.)
-+
-+
+Changed -t option of rlam to accept strings as well as single characters.
-+
-+
+Fixed bug in rcalc with -l option where it would sometimes go into an
-+
+infinite loop.
-+
-+
+Fixed truly ancient bug in bounding box computation for cones, which
-+
+could (and did) cause missing segments.
-+
-+
+Added -z option to normtiff to output LZW-compressed files.
-+
-+
+Last change to total causes it to produce results when it sees an empty
-+
+line on the input.  This was not intentional, but I decided I like this
-+
+behavior so I documented it rather than changing it.
-+
-+
+=====================
-+
+Version 3.8
-+
-+
+Fixed Russian roulette ray termination, which was doing the opposite of
-+
+what it should have been doing, resulting in overestimated values below
-+
+minimum ray sampling weight (serious).
-+
-+
+Changed mksource to use 98th percentile (rather than 99th) for threshold.
-+
-+
+(Above changes included in 3.7.1 patch release.)
-+
-+
+Eliminated writing of EXPOSURE= line in ra_tiff -r when source TIFF
-+
+does not have STONITS set.
-+
-+
+Fixed bug in ambient calculation that caused black values for multiple
-+
+bounces in some scenes.  Thanks to Mark Stock for creating and sharing
-+
+the sophisticated test scene that demonstrated this problem.
-+
-+
+Fixed bug in antimatter using Russian Roulette sampling.
-+
-+
+(Above changes included in 3.7.2 patch release 22 Aug 2005.)
-+
-+
+Created fieldcomb script to combine alternate fields in a rendering
-+
+sequence.  (Development generously sponsored by Iebele Abel.)
-+
-+
+Added missing preload of mesh objects for more efficient memory use
-+
+during parallel rendering -- this was a serious oversight.
-+
-+
+Created ran2tiff program to automate exposure setting of animation
-+
+sequences using a moving histogram in combination with pcond, and
-+
+converting frames to TIFF.
-+
-+
+Eliminated SPEED macro from makeall and source tree.

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Comparing ray/doc/notes/ReleaseNotes (file contents): Revision 1.75 by greg, Wed May 25 04:44:25 2005 UTC vs. Revision 1.100 by greg, Mon Sep 19 02:23:58 2005 UTC

Diff Legend

Comparing ray/doc/notes/ReleaseNotes (file contents):
Revision 1.75 by greg, Wed May 25 04:44:25 2005 UTC vs.
Revision 1.100 by greg, Mon Sep 19 02:23:58 2005 UTC