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Comparing ray/doc/notes/ReleaseNotes (file contents):
Revision 1.23 by greg, Wed Nov 19 16:21:28 2003 UTC vs.
Revision 1.25 by greg, Wed Dec 31 01:50:02 2003 UTC

# Line 1220 | Line 1220 | Added in(i) function to rcalc for more flexible channe
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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