--- ray/doc/notes/ReleaseNotes 2005/09/21 17:17:24 1.103 +++ ray/doc/notes/ReleaseNotes 2009/06/16 04:54:08 1.161 @@ -1529,3 +1529,182 @@ final bin file. (Pretty serious, actually.) Added -Dfseeko=fseek to MACH= line for linux, as fseeko(3) seems to be broken in current versions of Linux. (Need to remove this later.) + +Rearranged struct's for better efficiency on 64-bit architectures. + +Added -i option to rlam so it works with binary input formats. + +Added rtcontrib -bn option to specify number of bins and fixed bug +in recovery of files containing multiple values per record. + +Added rtcontrib -fo option to write over existing files, which it now +refuses to do without this option. + +Made rtcontrib flush output when handed a zero-length ray vector, +to match behavior of rtrace. + +Improved color scale for falsecolor output. + +Added threshold test for Fresnel approximation to prevent its use +on smooth surfaces with unrealistically low specularities (less than 1.8%). +Water has a specular reflectance of 2.1% at room temperture. + +Removed NICE macro settings in rpict and rtrace, which was slowing down +the processes under Mac OS X (10.4) by about 60% due to processor napping. + +Made xform, replmarks and rad2mgf handle quoted modifiers and names properly. + +Fixed problem in genblinds, where it was generating slats that were too +wide with the +/-r option. (Thanks to Helena Buelow-Huebe for discovering +this bug.) + +Fixed bug in ra_ppm for 16-bit/sample i/o, where it was getting the byte +order wrong (apparently). + +Added -V option to rtcontrib to report actual contributions, rather than +just ray coefficients. + +Fixed bug in ranimate that caused it to fail in continuation of renderings. + +Renamed librt.a to librtrad.a, to avoid conflict on Solaris. Almost +everything now gets linked to -lrtrad instead of -lrt. + +Fixed problem with large sample sets, so -u+ option now is truly random. +Thanks to Rick Mistrick and Younju Yoon for identifying this problem, +which was related to a poorly designed hash function. + +Changed -u+ to be the default setting in rtrace (only). + +Fixed binary i/o for rlam and vwrays under Windows. + +Added tmCvLums() to tone-mapping routines using a 16-bit lookup table +on IEEE floats, which is also used to improve speed of COLOR conversions, +especially on machines with slow log() calls. The first call to +tmCvLums(), tmCvGrays(), or tmCvColors() initializes the table. + +Created optics2rad.csh script to convert from Optics 5 material output +to something correct for Radiance. Built on old glazing.cal function, +which is actually incorrect so removed from the distribution. + +Fixed nuisance bug in ximage under some SGI machines that caused it to +choose an inappropriate visual and display incorrect colors. (Thanks +to Oskar Itzinger for debugging the problem.) + +Fixed long-standing inaccuracy of pcompos -t and +t thresholding options. + +Fixed bug in handling of views with tabs rather than spaces. + +Fixed bug related to alias of alias. + +****** COMPATIBILITY CHANGE ******** +Changed default sky turbidity in gensky from the original default of +2.75 to the CIE 110-1994 standard value of 2.45. Thanks to Marilyne +Anderson of MIT for pointing out this discrepancy. + +Added -o option to ra_xyze to produce original pixel values. + +Fixed bug in tracing of virtual sources, where intervening glazing was +not being accounted for properly. + +Added -h option to pcompos and pcomb to eliminate verbose headers. + +===================== +Version 3.9 + +Added -spec option to falsecolor to restore original spectral color scale. +Also added "-s auto" option to automatically set the maximum value. + +Added byte-swapping input and output to rcalc. + +Additional error-checking for source surfaces. + +Re-fixed bug in octree code that caused it to allocate 8 times as +much memory as it actually used(!) -- this was pointed out way back +in 1999 by Erik Reinhard and Erik Jansen, but the fix they gave me +got lost in the slightly broken release process at the time. This +should make a big difference in memory usage, especially for the +new mesh primitive. (I measured 30% less memory usage.) + +Corrected ray weights for material mixtures. + +Reduced the default -n setting for obj2mesh to take better advantage +of the smaller octree structure size. + +Fixed bug in shadow cache where it was adding surfaces with antimatter +holes cut in them to the obstructor list. Thanks to John Mardaljevic +for discovering and reporting the problem. + +Adding ability in mkillum to incorporate BSDF data in calculation. +Internal interface (raypcalls) now used in place of rtrace process(es). + +Fixed pixel alignment in pcomb for size reduction and enlargement. + +Allow rtcontrib user to set -P and -PP options for persistent rendering. +The only caveat is that -n setting > 1 requires -PP rather than -P. + +Added -c option to rtcontrib to facilitate cumulative calculations. + +****** COMPATIBILITY CHANGE ******** +Fixed long-standing bug in source.cal, which caused it to produce +reversed anisotropic photometric distributions due to the +misorientation of the y-axis. Thanks to Zack Rogers for discovering +and helping debug this problem. + +Fixed long-standing bug in replmarks, where triangles with X-side +aligned with Z-axis would cause incorrect rotations. Thanks to +Zack Rogers for finding this error. + +Added rsensor program to compute sensor signal for daylighting controls. +Funding for this component was provided by the Architectural Energy +Corporation in Boulder, CO, and directed by Zack Rogers. + +Added "planisphere" (stereographic) fisheye view type for traditional +daylighting analysis. Feature requested & explained by Axel Jacobs. + +Modified -c option to rtcontrib so it can take a number of input +rays to average over, rather than only produce a single accumulated +record (which can now be done with -c 0). + +===================== +Version 4.0 + +Added -n option to rvu to provide parallel rendering. + +****** COMPATIBILITY CHANGE ******** +Changed ".pic" extension to ".hdr" in all sources and documentation +to improve interoperability with other software, since this has become +the de facto extension for Radiance RGBE and XYZE pictures. Since file +extensions were never more than a convention in Radiance, this does not +affect operation, but may require the update of scripts, etc. written +by others that assume the ".pic" suffix for Radiance output. + +Added -N option to objview to support multiprocessing. + +Improved sampling of circular sources (source, sphere, ring types) with +quite a bit of help from David Geisler-Moroder. + +Added "rpict" and "rvu" variables to rad, and made these as well as +the "oconv", "mkillum" and "pfilt" variables accept an alternate +command path in each case. Change suggested by Lars Grobe based +on similar Radzilla (radz) facility by Carsten Bauer. + +Fixed rad -v N specification to use actual view name if one. + +Fixed error in mkillum calculation where it neglected indirect +source contributions from BTDF illum's. + +Added GMT and LATLONG header lines for Greenwich Mean Time and +degrees North Latitude / East Longitude. + +Added gendaylit to distribution (finally). + +Added ability in vwright(1) to get view from command line arguments. + +Created genklemsamp(1) utility to generate samples suitable for +BSDF-based annual calculations. This is the first Perl script to +be added to Radiance. Hopefully, others will follow. + +Added klems_int.cal file to compute Klems bins for windows. + +Created gentregvec utility to sample a particular sky and +evaluate average radiance over the standard Tregenza sky patches.