[ViewVC] Diff of: radiance/ray/doc/notes/ReleaseNotes

Comparing ray/doc/notes/ReleaseNotes (file contents):
Revision 1.183 by greg, Thu Dec 16 21:34:41 2010 UTC vs.
Revision 1.355 by greg, Wed Aug 14 18:20:02 2019 UTC

+using new rayfifo calls.
+=====================
-<
+Version 4.1
->
+Version 4.1 (Released 11/04/2011)
+Changed ranimate behavior so remote login under a different user
+doesn't necessarily require the presence of the originating user's
+Added options to pvalue to note other color spaces on reverse conversion.
+Thanks to Erich Philips for the feature request.
-+
-+
+Added BSDF data-driven material type with full sampling support.
-+
-+
+Added BRDF calculations to genBSDF.
-+
-+
+Bug fixes in rsensor thanks to help from David Geisler-Moroder.
-+
-+
+Added variable-resolution BSDF support in renderers and genBSDF.
-+
-+
+Created pkgBSDF program to extract BSDF geometry and put it
-+
+together with surface description suitable for inclusion in
-+
+a Radiance scene.
-+
-+
+Muted warning for "no light sources found" when there is at least
-+
+one glow object and interreflections are on (-ab > 0).
-+
-+
+Fixed long-standing bug that caused underestimation of reflection
-+
+when specular component was below -st threshold in non-metals.
-+
-+
+Checked in cross-platform cmake build system created by Bill Hoffman
-+
+of KitWare and sponsored by NREL.  This includes a qt-based
-+
+driver for rvu, which is built in the new subdirectory src/qtrvu.
-+
-+
+=====================
-+
+Version 4.2 (Release date 7/31/2014)
-+
-+
+Axel Jacobs added -cp and -palettes options to falsecolor.
-+
-+
+Fixed bug in matrix output of genBSDF introduced shortly before 4.1 release.
-+
-+
+Made rvu more responsive in multi-processing mode when changing parameters.
-+
+Explicit "new" command not needed to show changes, because it goes back
-+
+to "immediate mode" once something is changed.  Processing will be slow
-+
+but response time quick until next "new" command.
-+
-+
+Fixed major bug in transmitting proxy material sampling.
-+
-+
+Patched cmake build tools (changes by Zack Galbreath).
-+
-+
+Removed requirement for pflip -h to be given input file (can pipe from stdin).
-+
-+
+Added "Number of processes" slider to trad "Action" pane to control rad -N
-+
+option for rvu and batch rendering.
-+
-+
+Added -c option to vwrays to repeat pixels for rtcontrib.
-+
-+
+Reworked rtcontrib program and renamed to rcontrib.  New version runs much
-+
+faster, especially on multiprocessor systems, and doesn't require as much
-+
+memory.  No longer calls rtrace; instead does all the work itself.
-+
-+
+Added -d option to genskyvec to produce direct-only (sun no sky) vector.
-+
-+
+Added Ashikhmin-Shirley anisotropic BRDF model (ashik2) with help
-+
+from Nicolas Boneel.
-+
-+
+Added Ruby rewrite of objview.csh by Rob Guglielmetti.
-+
-+
+Fixed bug in reciprocity for tensor tree BTDF representations.  Thanks
-+
+to Andy McNeil for identifying the problem.
-+
-+
+Added MNAME and ZNAME variables to ranimove for debugging & testing.
-+
-+
+Created pmblur2 command to take motion and depth buffers from ranimove
-+
+to compute a better motion blur.
-+
-+
+****** COMPATIBILITY CHANGE ********
-+
+Changed BSDF routines to use updated/corrected XML specification and
-+
+removed depracated BSDF support from mkillum.
-+
-+
+Fixed behavior of i/o flushing in rcontrib with -c > 1 (averaging).  Thanks
-+
+to Lars Grobe for help identifying this problem.
-+
-+
+Fixed bug in depth-of-field blur where view distance was measured from
-+
+fore clipping plane rather than viewpoint.  Thanks to Peter A-B for
-+
+pointing this out.
-+
-+
+Added options to dctimestep to allow multiple time steps (-n)
-+
+and multiple output pictures or sensor files (-o).  Also added -i
-+
+option to specify float (-if) or double (-id) input for sky matrix.
-+
-+
+Created gendaymtx program to compute annual sky patch matrix based
-+
+on Ian Ashdown's implementation of Perez all-weather sky model.
-+
+Output can be sent directly to dctimestep in ASCII or binary stream.
-+
-+
+Replaced existing gendaylit.c with improved version from Wendelin Sprenger
-+
+and Jan Wienold of ISE.
-+
-+
+Improved accuracy of ambient calculation for large -ad settings.  Thanks
-+
+to Lars Grobe for noticing the problem.
-+
-+
+Added -r option to gendaymtx to rotate the sky the specified number of
-+
+degrees about the zenith as suggested by A. McNeil.
-+
-+
+Axel Jacobs added -pal eco color map that does a blue-red-yellow scale.
-+
-+
+Created bsdf2klems tool to convert from various BSDF representations to
-+
+Klems basis matrix in XML file.
-+
-+
+Fixed problem with inappropriate reciprocity enforcement on tensor
-+
+tree reduction in genBSDF.  (Thanks to A.McNeil for discovering issue.)
-+
-+
+Fixed bug in isotropic tensor tree sampling for impinging rays
-+
+exactly normal to surface.  Thanks to Peter Apian-Bennewitz for
-+
+discovering and pointing out the error.
-+
-+
+Fixed double-counting bug in mirror material with alternate type.
-+
+Thanks to David Geisler-Moroder for spotting the problem and helping
-+
+to fix it.
-+
-+
+Created rcollate program to resize and transpose matrix data for Andy
-+
+McNeil's 5-phase annual simulation method.
-+
-+
+Added epw2wea conversion program by Christoph Reinhart.
-+
-+
+Implemented Perlin's improved noise function with help from Rahul Narain.
-+
+This will change the appearance of renderings using this function.
-+
-+
+Added "origin" command to rvu as requested by John Mardaljevic
-+
+to place view origin at selected point in scene.
-+
-+
+Switch to Perl versions of objview and objpict written by Axel Jacobs.
-+
-+
+Improved rendering speed of scenes with aliases by not entering new
-+
+modifiers into table if they are the same as the previously defined
-+
+modifier for that name.
-+
-+
+Made it so icalc and rcalc search RAYPATH directories for *.cal files
-+
+given on command line.  This simplifies script writing and makes these
-+
+utilities consistent with other tools in Radiance.
-+
-+
+Added triangulation routine to handle convex polygons in obj2mesh.
-+
-+
+****** COMPATIBILITY CHANGE ********
-+
+Made backface visibility apply to all material types, including
-+
+transparent and translucent materials (except dielectric and interface).
-+
+This makes the option useful in cases where adjacent trans surfaces
-+
+are placed next to each other by a modeler that only understands
-+
+volumetric objects.
-+
-+
+Changed dctimestep so that output matrices (-n > 1) are preceded by a
-+
+header, and added support for float and double output formats with -o[fd].
-+
-+
+Introduced eplus_adduvf program to compute user view factors for EnergyPlus.
-+
-+
+Changed image-plane sampling in rpict to use Hilbert curve, which gives
-+
+less of a brushed/striped appearance to output pixels with -u- (default).
-+
-+
+Added ltview and ltpict Perl scripts contributed by Axel Jacobs, inspired
-+
+by Rob Guglielmetti.
-+
-+
+Added header variables for NROWS, NCOLS and NCOMP to help standardize
-+
+matrix files.  This functionality has been incorporated into
-+
+rcollate, gendaymtx, and dctimestep.
-+
-+
+Created rmtxop utility to operate on multi-component matrices.  This
-+
+facilitates some daylight matrix calculations, and provides a general
-+
+tool for manipulating matrix data.
-+
-+
+****** COMPATIBILITY CHANGE ********
-+
+Introduced new Hessian-based error control in irradiance caching (ambient)
-+
+calculation.  Since the format of the stored ambient values is different,
-+
+the old files will be rejected with an error message and must be removed.
-+
+The programs may be compiled with the -DOLDAMB option if this is a problem.
-+
-+
+Added -p option to rcontrib to set function file parameters on a per-modifier
-+
+basis to simplify bin evaluation.
-+
-+
+Created rfluxmtx program to compute flux transfer matrices from a sender
-+
+surface to one or more receiver surfaces.  (Renamed the file klems_int.cal
-+
+to klems_full.cal in the process.)
-+
-+
+Added "-c" option to getinfo to execute command on data segment.
-+
-+
+================================
-+
+Version 5.0 (Released 9/18/2015)
-+
-+
+Changed rmtxop so it writes out same type as lesser of inputs unless
-+
+directed otherwise using -f? option.
-+
-+
+Changed order of oconv arguments in rfluxmtx so user can specify input
-+
+octree using -i option at the end instead of (or in addition to) a
-+
+list of scene files.
-+
-+
+Added support for argument expansion to rfluxmtx and bug fixes.
-+
-+
+Fixed bug in indirect hemisphere sampling for some corner cases.
-+
-+
+Added default specular lobe to BSDF interpolation.
-+
-+
+Set minimum number of shadow checks before direct optimization (4).
-+
-+
+(Above changes included in 4.2.1 patch release.)
-+
-+
+****** COMPATIBILITY CHANGE ********
-+
+Made header input and output the default behavior for dctimestep and
-+
+genskyvec.
-+
-+
+****** COMPATIBILITY CHANGE ********
-+
+Changed pabopto2bsdf default behavior to add 90-degree rotation
-+
+to bring pgII's definition of "up" in line with Klems axis
-+
+conventions.  Introduced a new header variable "upphi" to
-+
+control this added rotation.  Using "#upphi 90" in each
-+
+BSDF input file gets back the original behavior, where it
-+
+assumes that the up direction is 90-degrees from the X-axis.
-+
+The default value of 0 corresponds to PAB's definition of
-+
+the X-axis as being "up".
-+
-+
+Fixed bug in rsensor related to having many rows (altitude) and
-+
+few columns (azimuth) in sensitivity file.
-+
-+
+Fixed floating point round-off error in new Hessian calculation
-+
+for some sytems (Windows, primarily).
-+
-+
+Fixed bug in tensor tree BSDF code that caused bus error on
-+
+some systems, and may have been source of other errors as well.
-+
-+
+(Above changes included in 4.2.2 patch release.)
-+
-+
+Improved ambient extrapolation to avoid zero values.  Actual
-+
+threshold set to 5% of recorded value.
-+
-+
+Changed anisotropic Gaussian and Ashikhmin models so that
-+
+illegal orientation vectors are dealt with more gracefully.
-+
-+
+Created wrapBSDF tool and incorporated into genBSDF along
-+
+with new rfluxmtx computation.
-+
-+
+Initial check-in of Roland Schregle's photon map integration.
-+
+New 5.0a version designation as suggested by Andy McNeil.
-+
-+
+Added left-hand coordinate sytems to rfluxmtx to correct
-+
+problems with coordinate axis orientations pointed out by
-+
+David Geisler-Moroder.
-+
-+
+Added color output to genBSDF (+C option) and support for
-+
+color rendering of Klems and tensor tree data.
-+
-+
+Fixed another bug in rsensor that caused rays to be generated
-+
+on opposite side of hemisphere even where sensitivity was zero.
-+
-+
+Fixed bug discovered by Jacob Jonsson in Klems BSDF
-+
+interpolator that caused it to over-predict normal
-+
+transmittance and reflectance.
-+
-+
+Added ability to read input from commands in dctimestep
-+
+and rmtxop.
-+
-+
+Added photon map support to rad.  Fixed some double-counting
-+
+issues in photon-mapping spotted by David Geisler-Moroder.
-+
-+
+Added photon map support to trad.
-+
-+
+Fixed bug in antimatter source testing when antimatter
-+
+definition follows potential obstructor in input.
-+
-+
+Fixed issue with missing character type identifier at head
-+
+of genBSDF XML output.
-+
-+
+Prompted by Roland S., added option to have pcompos -a order
-+
+rows from top rather than bottom of image.
-+
-+
+Changed dctimestep to accept matrix as well as BTDF input
-+
+in the VTDs invocation mode.  This permits the output of
-+
+rmtxop to be used in a pinch when combining multiple BTDF
-+
+layers, although interreflection between layers is not
-+
+accounted for properly as it is in the WINDOW program.
-+
-+
+Added Jan Wienold et al.'s evalglare to distribution.
-+
-+
+Hopeful fix to deadlock issue under Mac OS X 10.10.x (Yosemite).
-+
-+
+Fixed early exit of rcontrib with internal error (sample behind sender)
-+
+discovered by Rob G.
-+
-+
+=================================
-+
+Version 5.1 (Released 8/17/2017)
-+
-+
+Fixed issue with vchars.mta and symbols.mta not being installed in
-+
+the appropriate metafile library location, with help from Rob G.
-+
-+
+Added ability to give quoted strings to output= directive in rfluxmtx.
-+
-+
+****** COMPATIBILITY CHANGE ********
-+
+Added ability to digest color (CIE-XYZ) input in pabopto2bsdf.
-+
+This change alters the .sir (interpolant) format, so these files
-+
+will need to be regenerated.  Use the new "#colorimetry: CIE-XYZ" tag
-+
+to enable on input.
-+
-+
+Rewrote bsdf2klems to support tristimulus color and call wrapBSDF.
-+
+Did the same for bsdf2ttree.  Function specifications still gray only.
-+
-+
+Reduced a problem where rvu or rholo would be slow to quit when
-+
+run with many processes on a large model or one with a large
-+
+ambient file (taking lots of memory).  We were waiting for
-+
+processes to quit one-by-one, which takes some time for each
-+
+process as it disentangles its shared memory.  We now
-+
+wait for all the processes together, so they can disentangle
-+
+in parallel.  It can still take up to a minute in some cases,
-+
+but not 10 minutes like it was taking before the fix.
-+
-+
+Enabled ambient cache value corral for all levels, not just final two.
-+
+This may reduce errors in certain pathological scenes.
-+
-+
+Added -in option to rcalc, rlam, and total to limit the number of
-+
+input records in hopes of circumventing Windows EOF issues on binary data.
-+
+Also added -on option to rcalc and total for logical symmetry.
-+
-+
+Increased modifier limit to 10,000 in rcontrib.
-+
-+
+Fixed issues with glrad and added zoom response to mouse wheel input.
-+
-+
+Added missing definition of "ashik2" material type to reference manual.
-+
-+
+Changed genBSDF to calculate device thickness assuming Zmax==0 so
-+
+pkgBSDF will generate correct proxy geometry.
-+
-+
+Created pabopto2xyz tool to combine different sensor measurements
-+
+into a single CIE-XYZ measurement file for color BSDF interpolation.
-+
-+
+Jan Wienold updated evalglare to version 1.30
-+
-+
+Roland Schregle added out-of-core photon mapping routines, which
-+
+may be compiled using the PMAP_OOC macro.
-+
-+
+Added -a option to getinfo for easy addition of header lines.
-+
-+
+Fixed issue with multiple records on picture output in rcontrib (and rfluxmtx).
-+
+Credit to Sarith Subramaniam for pointing out the problem.
-+
-+
+Made mkillum more tolerant of non-planar polygons in its sampling routines.
-+
-+
+Added "-recover" option to genBSDF to pick up where it left off.
-+
-+
+Fixed genBSDF issue that was created incorrect normalization of
-+
+Klems output.  Thanks to David G-M and Christian Knoflach for
-+
+discovering the error.  Also improved sampling of indirect irradiance
-+
+that showed some slight bias due to poor sample collision avoidance.
-+
-+
+Fixed long-standing issue with -aa 0 neglecting textures in calculating
-+
+surface shading.
-+
-+
+Fixed bug in ranimove introduced during photon map integration.
-+
-+
+Added check for steep sections of BSDF in pabopto2bsdf, creating narrower
-+
+peakes in those places and mitigating some normalization issues.
-+
-+
+Added view360stereo.cal by Mark Stock to handle 360-degree over/under
-+
+stereo views.
-+
-+
+Added MAX2SHADE macro to place limit on number of light sources
-+
+to precheck for obstructions.  (Currently set to 200.)  This
-+
+avoids excessive start-up times for scenes with many light sources.
-+
+Thanks to Axel Jacobs for pointing out the problem.
-+
-+
+Added -v option to obj2mesh to print out mesh statistics.
-+
-+
+Rewrote bsdf2rad from ground up and made it a standard part of build.
-+
-+
+Fixed bug in orientation of Reinhart/Tregenza sample generator in rfluxmtx.
-+
-+
+Added ability to perform shadow-testing through unproxied BSDFs with strong
-+
+through (direct-direct) component.
-+
-+
+Added {+|-}a options to genBSDF and bsdf2ttree for switching off reciprocity
-+
+averaging.
-+
-+
+Added bias to see through BTDFs with a strong "through" component
-+
+rather than scattering view rays.  This is in lieu of peak extraction,
-+
+which looked to be too difficult from an implementation standpoint.
-+
-+
+Added bsdfview tool analogous to objview but for BSDF files (XML and SIR),
-+
+which calls bsdf2rad then rad with a few useful default views.
-+
-+
+=========================
-+
+Version 5.2 (Release October 8, 2018)
-+
-+
+Created psketch program to apply non-photorealistic rendering to selected
-+
+objects, identified by modifier name(s).
-+
-+
+Added '*' and '/' operations to rmtxop for element-wise multiplication and
-+
+division of same-sized matrices.
-+
-+
+Changed falsecolor so "-s" option is adjusted to match legend if one.
-+
-+
+Falsecolor legend changes and improvements by David G-M and Stephen W.
-+
-+
+Fixed bug in peak extraction code that generated
-+
+"Bad call to SDqueryTreProjSA" error, reported by Lars Grobe.
-+
-+
+Increased maximum luminance to 10^7 in pcond to fix issue noticed
-+
+by Axel Jacobs where veiling glare not added for the sun under
-+
+some conditions.
-+
-+
+Increased maximum number of open files in rcontrib to the system upper
-+
+limit of 2048 rather than the default 512 under Windows.
-+
-+
+Added top-level resources directory with files from Rob Guglielmetti.
-+
-+
+Improved accuracy for peaky BSDFs and small light sources.
-+
-+
+Fixed issue with pmapdump noted by Axel Jacobs.
-+
-+
+Improved accuracy of bsdf2ttree when converting scattering interpolation
-+
+representatons with strong peaks.
-+
-+
+Tweaked peak-extraction code to work more reliably.
-+
-+
+Georg Mischler updated SCons build system.
-+
-+
+Rob Guglielmetti and Alex Swindler updated CMake build system.
-+
-+
+Modified pcomb so the first view seen in the inputs is written into header.
-+
-+
+Wrote rtpict script to run rtrace in parallel mode and simulate rpict with
-+
+-n option.
-+
-+
+Added ability to move forwards/backwards specified distance in rvu "origin"
-+
+command.  Feature requested by John Mardaljevic, who essentially owns this
-+
+command, now.
-+
-+
+Reduced bias in ambient super-sampling method.
-+
-+
+Fixed bugs associated with zero transmission in chromatic tensor trees.
-+
+Thanks to Lars Grobe for pointing out issues.
-+
-+
+Added RAYPATH searching for -f options to genrev, gensurf, genworm,
-+
+bsdf2klems, bsdf2ttree, and pcomb.  This makes behavior consistent
-+
+with rcalc, calc, and rendering tools.
-+
-+
+Worked with Randolph Fritz to fix some issues with ies2rad and newer
-+
+IESNA63 standards.
-+
-+
+Resurrected original bsdf2rad test program, renaming it bsdf2rado. Still an
-+
+optional build in src/cv/.
-+
-+
+Fixed bug in rcontrib with virtual sources, where pretest was adding
-+
+to modifier accumulation buffers.  Reported by Mostapha.
-+
-+
+Added an "aBSDF" material type that explicitly checks for peak extraction.
-+
+Its arguments are the same as the original "BSDF" type, but without the
-+
+thickness parameter, as proxy geometry is not supported by this new type.
-+
+The old "BSDF" type no longer does peak extraction under any circumstances,
-+
+since this behavior is superfluous for proxied geometry.
-+
-+
+Added -r option to bsdf2rad (and bsdfview) to fix BSDF min and max range
-+
+for comparing BSDFs.
-+
-+
+Fixed issue with pfilt -m option and uneven image size changes pointed
-+
+out by Rob Shakespeare.
-+
-+
+Updates to evalglare and gendaylit from Jan Wienold, including new
-+
+colored sky option.
-+
-+
+=========================
-+
+Version 5.3
-+
-+
+Created radcompare program to compare Radiance tool output to reference outputs
-+
+during unit-testing.
-+
-+
+Fixed issue reading very large files (> 2 GBytes) in rcollate.
-+
-+
+Made picking function in rvu ignore transparent and void surfaces.
-+
-+
+Added -orRxX options to rtrace to enable output of mirrored and unmirrored
-+
+contributions and distances to enable new types of reprojections.  This also
-+
+cleaned up and unified handling of effective ray lengths throughout code.
-+
-+
+Bug fixes from Jan Wienold for evalglare.
-+
-+
+Changed indexed (numbered) output from dctimestep to start from 0 rather
-+
+than 1, to make it more consistent with expected input naming.
-+
-+
+Increased default sampling in bsdf2klems (-n option) to 1024.
-+
-+
+Fixed an issue noticed by David G-M that was causing genBSDF to bias
-+
+isotropic tensor tree samples resulting in subsequent failure of
-+
+peak extraction with "aBSDF" type.
-+
-+
+Introduced max() and min() functions to .cal library.
-+
-+
+Added random incident patch sampling to bsdf2klems to improve accuracy
-+
+with scattering interpolation representation input (e.g., from
-+
+pabopto2bsdf).  The other input types already sampled incident patch area.
-+
-+
+Added gendaymtx -A option to compute average sky over all the input
-+
+time steps.
-+
-+
+Added ability to output color image from rtrace with any of -ovrx options.
-+
+Also fixed inconsistency of -oN output when ray casting versus full trace.
-+
+Before, it would flip normal to front side unless ray casting.  Now, -oN
-+
+always reports the unflipped normal.
-+
-+
+Changed rlam behavior so -iaN reads N lines from a stream rather than N
-+
+characters.  This seems more useful, since -ibN is somewhat redundant with
-+
+the old behavior.
-+
-+
+Created rsplit program as compliment to rlam and to handle more complex
-+
+rtrace output into separate files or streams.
-+
-+
+Improved getinfo so that it can also hop over resolution string with -c
-+
+and header elide mode.  Use +d to include resolution string in output,
-+
+and -d to elide with - and -c options.
-+
-+
+Made pvalue -u option mean "uncompressed" with -r.  Also, allow skipping
-+
+bytes on standard input.
-+
-+
+Created rcode_depth tool to convert to and from a 16-bit/pixel portable
-+
+depth image encoding that uses a mix of linear and reciprocal distance
-+
+with explicit representations of 0 and infinity.  Code for loading these
-+
+depth maps is in src/common/depthcodec.{h,c}.
-+
-+
+Created rcode_norm tool to convert to and from 32-bit/pixel portable
-+
+surface normal representation, matching the one in src/common/dircode.c.
-+
+Code for loading normal maps is in src/common/normcodec.{h,c}.
-+
-+
+Created rcode_ident tool to create indexed identifier files.
-+
+Code for loading these files is in src/common/idmap.{h,c}.
-+
-+
+Added -o* option to rtpict to produce layered images that handle most
-+
+output types from rtrace (colors, surface normals, distances, IDs).
-+
-+
+Created rcode2bmp script to create images from new rcode_* output maps.
-+
-+
+Improved efficiency of rmtxop in cases where matrix multiplication is
-+
+faster evaluated right-to-left, as when the final component is a
-+
+column vector.  Also added ability to apply trailing unary operators
-+
+(-t, and -s or -c) to resulting matrix.
-+
-+
+Added new depth, normal, and ID file types to radcompare.
-+
-+
+Added BigEndian= header line for automatic byte-swapping in rmtxop
-+
+and radcompare.  Doesn't work quite as automatically as it should
-+
+for pvalue -r, currently.

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Comparing ray/doc/notes/ReleaseNotes (file contents): Revision 1.183 by greg, Thu Dec 16 21:34:41 2010 UTC vs. Revision 1.355 by greg, Wed Aug 14 18:20:02 2019 UTC

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Comparing ray/doc/notes/ReleaseNotes (file contents):
Revision 1.183 by greg, Thu Dec 16 21:34:41 2010 UTC vs.
Revision 1.355 by greg, Wed Aug 14 18:20:02 2019 UTC