| 921 |  | by Erich Phillips. | 
| 922 |  |  | 
| 923 |  | ============================== | 
| 924 | < | Version 3.5 (Released 3/14/03) | 
| 924 | > | Version 3.5 (Released 3/21/03) | 
| 925 |  |  | 
| 926 |  | Fixed bug in replmarks pointed out by Georg Mischler, which caused | 
| 927 |  | garbage to be output under specific conditions (unscaled, unrotated | 
| 1044 |  | to install it in the src/lib/ directory along with the new | 
| 1045 |  | raycalls.o module, which should facilitate the building | 
| 1046 |  | of new applications outside the src/rt/ directory.  The | 
| 1047 | < | raypcalls.o module, also included in -lradiance, manages | 
| 1047 | > | raypcalls.o module, also installed in src/lib, manages | 
| 1048 |  | parallel rendering on multiprocessors with shared memories. | 
| 1049 |  |  | 
| 1050 |  | Wrote new ranimove animation rendering program, which is an | 
| 1138 |  | This required a little reprogramming in for couple | 
| 1139 |  | of recursive routines using sets to avoid overrunning | 
| 1140 |  | the stack limit. | 
| 1141 | + |  | 
| 1142 | + | ============================== | 
| 1143 | + | Version 3.6 | 
| 1144 | + |  | 
| 1145 | + | Modified 4-byte RGBE encoding routine to avoid problems | 
| 1146 | + | when one or two primary values is negative and the other(s) | 
| 1147 | + | positive.  This used to generate some strange color values. | 
| 1148 | + |  | 
| 1149 | + | Added -oc option to rtrace to output local (u,v) coordinates. | 
| 1150 | + |  | 
| 1151 | + | Fixed bugs in local uv and j unit vector variables in src/rt/func.c. | 
| 1152 | + |  | 
| 1153 | + | Added warning message to OpenGL rendering routines about new | 
| 1154 | + | mesh primitive, which we cannot currently render. | 
| 1155 | + |  | 
| 1156 | + | Added -if, -id, -of, and -od options to rcalc to provide for | 
| 1157 | + | binary float and double i/o. | 
| 1158 | + |  | 
| 1159 | + | ****************** COMPATIBILITY CHANGE *********************** | 
| 1160 | + | Changed holodeck format to used off_t instead of long for beam | 
| 1161 | + | positions, which allows holodecks to grow to system file size limit. | 
| 1162 | + |  | 
| 1163 | + | Fixed wrapping long in source hit test code, which would cause | 
| 1164 | + | odd horizontal lines in some very long renderings. | 
| 1165 | + |  | 
| 1166 | + | Added -f and -w options to ra_tiff to create IEEE float and 16-bit/primary | 
| 1167 | + | TIFF output, respectively.  These formats are also understood on reverse | 
| 1168 | + | conversion.  (16-bit/primary has been understood for some time, but not | 
| 1169 | + | IEEE float.) | 
| 1170 | + |  | 
| 1171 | + | Added -N option to rad to start multiple rendering processes in | 
| 1172 | + | parallel. | 
| 1173 | + |  | 
| 1174 | + | Fixed bug where mesh instances were not being freed, so subsequent calls | 
| 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. | 
| 1179 | + |  | 
| 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 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. | 
| 1188 | + |  | 
| 1189 | + | Added -dF and -dD options to pvalue for byte-swapped floats and | 
| 1190 | + | doubles, respectively. | 
| 1191 | + |  | 
| 1192 | + | Changed meta2tga to output correct colors. | 
| 1193 | + |  | 
| 1194 | + | Changed local coordinate index from 32-bits to 16-bits, which requires | 
| 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. | 
| 1200 | + |  | 
| 1201 | + | Improved interaction with rholo -o ogl driver under OS X, which was | 
| 1202 | + | returning bad values from the depth buffer. | 
| 1203 | + |  | 
| 1204 | + | Minor bug fix in ranimove where it was restarting processes when it | 
| 1205 | + | didn't need to. | 
| 1206 | + |  | 
| 1207 | + | Increased accuracy of default ambient parameters in rpict, rview, and | 
| 1208 | + | rtrace.  In rad program, doubled -ar value, -ad value, and -as value, | 
| 1209 | + | and decreased -aa value a bit.  Also adjusted -lr upwards and -lw | 
| 1210 | + | downwards.  I should have done these things long ago, as processors | 
| 1211 | + | have been getting faster and faster over the years. | 
| 1212 | + |  | 
| 1213 | + | Fixed bug discovered by Marcus Jacobs where oconv was dumping core | 
| 1214 | + | when it was given too many modifiers. | 
| 1215 | + |  | 
| 1216 | + | Fixed problem with rpict where it was drawing illum sources badly | 
| 1217 | + | even when they weren't all that small in the view. | 
| 1218 | + |  | 
| 1219 | + | Added in(i) function to rcalc for more flexible channel evaluation. | 
| 1220 | + |  | 
| 1221 | + | Replaced all calls to vfork() with regular fork() calls. | 
| 1222 | + |  | 
| 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. |