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Comparing ray/doc/notes/ReleaseNotes (file contents):
Revision 1.225 by greg, Fri Oct 18 17:04:13 2013 UTC vs.
Revision 1.294 by greg, Fri Mar 3 01:25:27 2017 UTC

# Line 1807 | Line 1807 | of KitWare and sponsored by NREL.  This includes a qt-
1807   driver for rvu, which is built in the new subdirectory src/qtrvu.
1808  
1809   =====================
1810 < Version 4.2
1810 > Version 4.2 (Release date 7/31/2014)
1811  
1812   Axel Jacobs added -cp and -palettes options to falsecolor.
1813  
# Line 1902 | Line 1902 | This will change the appearance of renderings using th
1902  
1903   Added "origin" command to rvu as requested by John Mardaljevic
1904   to place view origin at selected point in scene.
1905 +
1906 + Switch to Perl versions of objview and objpict written by Axel Jacobs.
1907 +
1908 + Improved rendering speed of scenes with aliases by not entering new
1909 + modifiers into table if they are the same as the previously defined
1910 + modifier for that name.
1911 +
1912 + Made it so icalc and rcalc search RAYPATH directories for *.cal files
1913 + given on command line.  This simplifies script writing and makes these
1914 + utilities consistent with other tools in Radiance.
1915 +
1916 + Added triangulation routine to handle convex polygons in obj2mesh.
1917 +
1918 + ****** COMPATIBILITY CHANGE ********
1919 + Made backface visibility apply to all material types, including
1920 + transparent and translucent materials (except dielectric and interface).
1921 + This makes the option useful in cases where adjacent trans surfaces
1922 + are placed next to each other by a modeler that only understands
1923 + volumetric objects.
1924 +
1925 + Changed dctimestep so that output matrices (-n > 1) are preceded by a
1926 + header, and added support for float and double output formats with -o[fd].
1927 +
1928 + Introduced eplus_adduvf program to compute user view factors for EnergyPlus.
1929 +
1930 + Changed image-plane sampling in rpict to use Hilbert curve, which gives
1931 + less of a brushed/striped appearance to output pixels with -u- (default).
1932 +
1933 + Added ltview and ltpict Perl scripts contributed by Axel Jacobs, inspired
1934 + by Rob Guglielmetti.
1935 +
1936 + Added header variables for NROWS, NCOLS and NCOMP to help standardize
1937 + matrix files.  This functionality has been incorporated into
1938 + rcollate, gendaymtx, and dctimestep.
1939 +
1940 + Created rmtxop utility to operate on multi-component matrices.  This
1941 + facilitates some daylight matrix calculations, and provides a general
1942 + tool for manipulating matrix data.
1943 +
1944 + ****** COMPATIBILITY CHANGE ********
1945 + Introduced new Hessian-based error control in irradiance caching (ambient)
1946 + calculation.  Since the format of the stored ambient values is different,
1947 + the old files will be rejected with an error message and must be removed.
1948 + The programs may be compiled with the -DOLDAMB option if this is a problem.
1949 +
1950 + Added -p option to rcontrib to set function file parameters on a per-modifier
1951 + basis to simplify bin evaluation.
1952 +
1953 + Created rfluxmtx program to compute flux transfer matrices from a sender
1954 + surface to one or more receiver surfaces.  (Renamed the file klems_int.cal
1955 + to klems_full.cal in the process.)
1956 +
1957 + Added "-c" option to getinfo to execute command on data segment.
1958 +
1959 + ================================
1960 + Version 5.0 (Released 9/18/2015)
1961 +
1962 + Changed rmtxop so it writes out same type as lesser of inputs unless
1963 + directed otherwise using -f? option.
1964 +
1965 + Changed order of oconv arguments in rfluxmtx so user can specify input
1966 + octree using -i option at the end instead of (or in addition to) a
1967 + list of scene files.
1968 +
1969 + Added support for argument expansion to rfluxmtx and bug fixes.
1970 +
1971 + Fixed bug in indirect hemisphere sampling for some corner cases.
1972 +
1973 + Added default specular lobe to BSDF interpolation.
1974 +
1975 + Set minimum number of shadow checks before direct optimization (4).
1976 +
1977 + (Above changes included in 4.2.1 patch release.)
1978 +
1979 + ****** COMPATIBILITY CHANGE ********
1980 + Made header input and output the default behavior for dctimestep and
1981 + genskyvec.
1982 +
1983 + ****** COMPATIBILITY CHANGE ********
1984 + Changed pabopto2bsdf default behavior to add 90-degree rotation
1985 + to bring pgII's definition of "up" in line with Klems axis
1986 + conventions.  Introduced a new header variable "upphi" to
1987 + control this added rotation.  Using "#upphi 90" in each
1988 + BSDF input file gets back the original behavior, where it
1989 + assumes that the up direction is 90-degrees from the X-axis.
1990 + The default value of 0 corresponds to PAB's definition of
1991 + the X-axis as being "up".
1992 +
1993 + Fixed bug in rsensor related to having many rows (altitude) and
1994 + few columns (azimuth) in sensitivity file.
1995 +
1996 + Fixed floating point round-off error in new Hessian calculation
1997 + for some sytems (Windows, primarily).
1998 +
1999 + Fixed bug in tensor tree BSDF code that caused bus error on
2000 + some systems, and may have been source of other errors as well.
2001 +
2002 + (Above changes included in 4.2.2 patch release.)
2003 +
2004 + Improved ambient extrapolation to avoid zero values.  Actual
2005 + threshold set to 5% of recorded value.
2006 +
2007 + Changed anisotropic Gaussian and Ashikhmin models so that
2008 + illegal orientation vectors are dealt with more gracefully.
2009 +
2010 + Created wrapBSDF tool and incorporated into genBSDF along
2011 + with new rfluxmtx computation.
2012 +
2013 + Initial check-in of Roland Schregle's photon map integration.
2014 + New 5.0a version designation as suggested by Andy McNeil.
2015 +
2016 + Added left-hand coordinate sytems to rfluxmtx to correct
2017 + problems with coordinate axis orientations pointed out by
2018 + David Geisler-Moroder.
2019 +
2020 + Added color output to genBSDF (+C option) and support for
2021 + color rendering of Klems and tensor tree data.
2022 +
2023 + Fixed another bug in rsensor that caused rays to be generated
2024 + on opposite side of hemisphere even where sensitivity was zero.
2025 +
2026 + Fixed bug discovered by Jacob Jonsson in Klems BSDF
2027 + interpolator that caused it to over-predict normal
2028 + transmittance and reflectance.
2029 +
2030 + Added ability to read input from commands in dctimestep
2031 + and rmtxop.
2032 +
2033 + Added photon map support to rad.  Fixed some double-counting
2034 + issues in photon-mapping spotted by David Geisler-Moroder.
2035 +
2036 + Added photon map support to trad.
2037 +
2038 + Fixed bug in antimatter source testing when antimatter
2039 + definition follows potential obstructor in input.
2040 +
2041 + Fixed issue with missing character type identifier at head
2042 + of genBSDF XML output.
2043 +
2044 + Prompted by Roland S., added option to have pcompos -a order
2045 + rows from top rather than bottom of image.
2046 +
2047 + Changed dctimestep to accept matrix as well as BTDF input
2048 + in the VTDs invocation mode.  This permits the output of
2049 + rmtxop to be used in a pinch when combining multiple BTDF
2050 + layers, although interreflection between layers is not
2051 + accounted for properly as it is in the WINDOW program.
2052 +
2053 + Added Jan Wienold et al.'s evalglare to distribution.
2054 +
2055 + Hopeful fix to deadlock issue under Mac OS X 10.10.x (Yosemite).
2056 +
2057 + Fixed early exit of rcontrib with internal error (sample behind sender)
2058 + discovered by Rob G.
2059 +
2060 + =================================
2061 + Version 5.1
2062 +
2063 + Fixed issue with vchars.mta and symbols.mta not being installed in
2064 + the appropriate metafile library location, with help from Rob G.
2065 +
2066 + Added ability to give quoted strings to output= directive in rfluxmtx.
2067 +
2068 + ****** COMPATIBILITY CHANGE ********
2069 + Added ability to digest color (CIE-XYZ) input in pabopto2bsdf.
2070 + This change alters the .sir (interpolant) format, so these files
2071 + will need to be regenerated.  Use the new "#colorimetry: CIE-XYZ" tag
2072 + to enable on input.
2073 +
2074 + Rewrote bsdf2klems to support tristimulus color and call wrapBSDF.
2075 + Did the same for bsdf2ttree.  Function specifications still gray only.
2076 +
2077 + Reduced a problem where rvu or rholo would be slow to quit when
2078 + run with many processes on a large model or one with a large
2079 + ambient file (taking lots of memory).  We were waiting for
2080 + processes to quit one-by-one, which takes some time for each
2081 + process as it disentangles its shared memory.  We now
2082 + wait for all the processes together, so they can disentangle
2083 + in parallel.  It can still take up to a minute in some cases,
2084 + but not 10 minutes like it was taking before the fix.
2085 +
2086 + Enabled ambient cache value corral for all levels, not just final two.
2087 + This may reduce errors in certain pathological scenes.
2088 +
2089 + Added -in option to rcalc, rlam, and total to limit the number of
2090 + input records in hopes of circumventing Windows EOF issues on binary data.
2091 + Also added -on option to rcalc and total for logical symmetry.
2092 +
2093 + Increased modifier limit to 10,000 in rcontrib.
2094 +
2095 + Fixed issues with glrad and added zoom response to mouse wheel input.
2096 +
2097 + Added missing definition of "ashik2" material type to reference manual.
2098 +
2099 + Changed genBSDF to calculate device thickness assuming Zmax==0 so
2100 + pkgBSDF will generate correct proxy geometry.
2101 +
2102 + Created pabopto2xyz tool to combine different sensor measurements
2103 + into a single CIE-XYZ measurement file for color BSDF interpolation.
2104 +
2105 + Jan Wienold updated evalglare to version 1.30
2106 +
2107 + Roland Schregle added out-of-core photon mapping routines, which
2108 + may be compiled using the PMAP_OOC macro.
2109 +
2110 + Added -a option to getinfo for easy addition of header lines.
2111 +
2112 + Fixed issue with multiple records on picture output in rcontrib (and rfluxmtx).
2113 + Credit to Sarith Subramaniam for pointing out the problem.
2114 +
2115 + Made mkillum more tolerant of non-planar polygons in its sampling routines.
2116 +
2117 + Added "-recover" option to genBSDF to pick up where it left off.
2118 +
2119 + Fixed genBSDF issue that was created incorrect normalization of
2120 + Klems output.  Thanks to David G-M and Christian Knoflach for
2121 + discovering the error.  Also improved sampling of indirect irradiance
2122 + that showed some slight bias due to poor sample collision avoidance.
2123 +
2124 + Fixed long-standing issue with -aa 0 neglecting textures in calculating
2125 + surface shading.
2126 +
2127 + Fixed bug in ranimove introduced during photon map integration.
2128 +
2129 + Added check for steep sections of BSDF in pabopto2bsdf, creating narrower
2130 + peakes in those places and mitigating some normalization issues.
2131 +
2132 + Added view360stereo.cal by Mark Stock to handle 360-degree over/under
2133 + stereo views.
2134 +
2135 + Added MAX2SHADE macro to place limit on number of light sources
2136 + to precheck for obstructions.  (Currently set to 200.)  This
2137 + avoids excessive start-up times for scenes with many light sources.
2138 + Thanks to Axel Jacobs for pointing out the problem.
2139 +
2140 + Added -v option to obj2mesh to print out mesh statistics.

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