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Comparing ray/doc/notes/ReleaseNotes (file contents):
Revision 1.20 by greg, Wed Oct 1 22:07:19 2003 UTC vs.
Revision 1.25 by greg, Wed Dec 31 01:50:02 2003 UTC

# Line 1214 | Line 1214 | when it was given too many modifiers.
1214  
1215   Fixed problem with rpict where it was drawing illum sources badly
1216   even when they weren't all that small in the view.
1217 +
1218 + Added in(i) function to rcalc for more flexible channel evaluation.
1219 +
1220 + Replaced all calls to vfork() with regular fork() calls.
1221 +
1222 + Fixed bug in glarendx for dgr calculation with sources behind view.
1223 +
1224 + Added -p option to histo to print percentages/percentiles r.t. counts.
1225 +
1226 + Added a source occluder cache to accelerate shadow testing.  This
1227 + can save up to 50% of the calculation time in scenes with many
1228 + light sources, especially ones containing large occluders.  This
1229 + optimization may be tuned or switched off with the -DSHADCACHE=N
1230 + compile switch, where N is the resolution of the shadow cache, or
1231 + 0 to disable it.  Since this is purely a time vs. memory trade-off,
1232 + I decided not to make it a new command-line option.  (We already
1233 + have plenty.)

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