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Comparing ray/doc/notes/ReleaseNotes (file contents):
Revision 1.24 by greg, Sun Dec 14 16:33:37 2003 UTC vs.
Revision 1.41 by greg, Thu Sep 9 17:05:43 2004 UTC

# Line 1172 | Line 1172 | Added -N option to rad to start multiple rendering pro
1172   parallel.
1173  
1174   Fixed bug where mesh instances were not being freed, so subsequent calls
1175 < in programs like ranimate would refer to bogus data.
1175 > in programs like ranimove would refer to bogus data.
1176  
1177   Added support in normtiff for floating-point and 16-bit/sample TIFF input
1178   files.
# Line 1180 | Line 1180 | files.
1180   Changed marksources() routine (src/rt/source.c) to check all
1181   primitives in the modifier chain for emitting types, not only
1182   the first.  This permits sources to be described with intervening
1183 < modifiers before the light/illum/glow primitive.
1183 > modifiers before the light/illum/glow primitive and allows aliases
1184 > as well.
1185  
1186   Fixed bug in xform where it was neglecting to add transform arguments
1187   to new mesh primitive.
# Line 1190 | Line 1191 | doubles, respectively.
1191  
1192   Changed meta2tga to output correct colors.
1193  
1193 ****** COMPATIBILITY CHANGE ********
1194   Changed local coordinate index from 32-bits to 16-bits, which requires
1195 < that Radiance mesh files be recompiled.
1195 > that Radiance mesh files be recompiled.  (Later decided against this
1196 > change, as it caused problems with some models.)
1197  
1198   Changed integer tone-mapping routines to better deal with images
1199   containing large, constant regions.
# Line 1222 | Line 1223 | Replaced all calls to vfork() with regular fork() call
1223   Fixed bug in glarendx for dgr calculation with sources behind view.
1224  
1225   Added -p option to histo to print percentages/percentiles r.t. counts.
1226 +
1227 + Added a source occluder cache to accelerate shadow testing.  This
1228 + can save up to 50% of the calculation time in scenes with many
1229 + light sources, especially ones containing large occluders.  This
1230 + optimization may be tuned or switched off with the -DSHADCACHE=N
1231 + compile switch, where N is the resolution of the shadow cache, or
1232 + 0 to disable it.  Since this is purely a time vs. memory trade-off,
1233 + I decided not to make it a new command-line option.  (We already
1234 + have plenty.)
1235 +
1236 + ****** COMPATIBILITY CHANGE ********
1237 + Changed the following command names to avoid conflicts:
1238 +        rview -> rvu (with symbolic link back to rview)
1239 +        calc -> icalc
1240 +        lam -> rlam
1241 +        gencat -> gencatenary
1242 +
1243 + Improved -f option of normpat, which caused odd color changes before.
1244 +
1245 + Created pgblur script which does fast Gaussian blur of image without changing
1246 + its dimensions.  This is very useful in certain types of image processing
1247 + calculations, such as finding or removing low frequencies.
1248 +
1249 + ****** COMPATIBILITY CHANGE ********
1250 + Changed little-used objpict script so that it takes scene files rather than
1251 + rpict options on the command line, and puts everything into the right
1252 + coordinate position automatically rather than requiring the user to do it.
1253 +
1254 + Added -I option to replmarks for mesh instancing.
1255 +
1256 + Made similar change for virtual sources to allow modifiers and aliases
1257 + on the mirror and prism types to work properly.
1258 +
1259 + Rob Guglielmetti dded -lw and -lh options to falsecolor to control the
1260 + legend dimensions.  Made it so -lw 0 and/or -lh 0 turns legend off.
1261 +
1262 + Made it so pcompos will read everything from a stream even if it doesn't
1263 + need it, so input commands will not receive a hangup signal.
1264 +
1265 + Wrote ra_bmp program to convert to and from Windows BMP files (finally).
1266 + It's the most horrible image format I've ever seen, and I've seen a lot.
1267 +
1268 + Increased -aa default value for all renderers (and also -ad and -as in
1269 + rview) at Schorsch's suggestion.  I think this undid my earlier decrease
1270 + of -aa last time, which I guess was ill-considered.
1271 +
1272 + Modified oconv to keep subdividing the octree if there are too many
1273 + objects in a voxel even when the -r resolution limit has been
1274 + reached.  This was not done before due to problems with recursion,
1275 + and still, it will only continue to 256 times the original -r limit.
1276 + If that isn't enough, then there's probably no hope, anyway.
1277 +
1278 + Added -l option to obj2mesh to search for material files in library
1279 + locations.
1280 +
1281 + Increased polygon vertex limit to 512 in obj2mesh and obj2rad and added
1282 + warning if this limit is exceeded.
1283 +
1284 + Added tone-mapping and monitor primary options to ra_bmp.  This gives
1285 + new functionality similar to normtiff and ximage.  It would be nice to
1286 + add this feature to the other ra_* programs as well...  someday.
1287 +
1288 + Fixed long-standing bug in reported pixel ordering out of certain
1289 + protate commands.
1290 +
1291 + Added -p option to rcalc for "passive mode" that transmits
1292 + unrecognized input -- useful for substituting data in the
1293 + middle of a stream.
1294 +
1295 + Fixed a very obscure bug in rpict that caused a dark horizontal
1296 + line in certain cylindrical projections due to improper drawing
1297 + of the sky dome source in rt/srcdraw.c.
1298 +
1299 + Fixed problems with effective ray lenths computed for dielectric
1300 + and BRTDfunc materials.  This was most evident in breakup of holodeck
1301 + views when VDISTANCE=True.

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