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

Comparing ray/doc/notes/ReleaseNotes (file contents):
Revision 1.405 by greg, Tue Mar 8 22:27:56 2022 UTC vs.
Revision 1.430 by greg, Tue Nov 21 01:36:32 2023 UTC

+Fixed issue with over-counting diffuse component during aBSDF
+peak extraction.
-+
-+
+Added dctimestep -x and -y options to specify image dimensions
-+
+for multiple outputs corresponding to result vectors.
-+
-+
+Added -P option to rcalc to pass formatted input when cond is <= 0.
-+
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+Created rcrop utility for cropping matrices and pictures more
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+conveniently, correcting view information.  Expect it to be handy
-+
+for extracting rows and columns from matrices, mostly.
-+
-+
+Changed pcomb so -o option elides original exposure values
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+from indented source headers.
-+
-+
+Added getinfo -r option, which is similar to -a except it will
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+replace indicated lines with new ones.
-+
-+
+Slight change to vwrays -d option to not spit out "-ld-", and to
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+produce "-ld+" without requiring input picture as argument.
-+
-+
+Added automatic overture calculation to rtpict with -n > 1 if
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+ambient cache is on and file is named.  If straight image output
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+is requested, we randomize all samples and avoid cache collisions.
-+
-+
+Added cnt -s option to shuffle output.
-+
-+
+Fixed issue with divide-by-zero errors in the ambient super-sampling
-+
+routine discovered by Jon Sargent of Solemma.  This affected regions
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+that had zero radiance, such as black backgrounds or unlit areas
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+with -av 0 0 0, when super-sampling was effectively disabled, causing
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+some loss in accuracy of the results.
-+
-+
+Updated Klems Half- and Quarter-bases to match angles currently used
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+in WINDOW.
-+
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+Eliminated most aiming failures for triangular light sources, at the
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+expense of conservative sampling near the centroid.  Thanks to
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+David Geisler-Moroder for his help on this.
-+
-+
+Increased maximum set size to 8191 to avoid set overflow errors.
-+
-+
+Added source obstruction test to statistics being kept on which
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+sources were visible in adaptive shadow testing code.  Previous
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+behavior was likely over-estimating source contributions.
-+
-+
+Added diffuse components into maximum directional hemispherical
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+reported by checkBSDF, so comparing to 100% is easier for each
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+component.
-+
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+Fixed incorrect calculations in iso2klems script, thanks to
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+help from Jacob Jonnson.
-+
-+
+Updated official copyright and license according to new wording
-+
+provided by Jean Haemmerle at the LBNL Intellectual Property Office.
-+
+Both were copied verbatim from e-mail I received from Taoning Wang
-+
+on 8/20/2022.
-+
-+
+Added -features option to rpict, rtrace, and rcontrib to check
-+
+which features are present or look for specific feature support.
-+
+This addition was suggested by Peter Apian-Bennewitz as an easier
-+
+way to determine which version of Radiance is installed and what
-+
+it supports, and is timely as we begin our refactoring of the
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+rendering code.  There are no current plans to add this to rvu.
-+
-+
+Added falsecolor -odim, -orct, and -c0 options to overlay grid of
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+values on image.  This was requested by Rob Shakespeare.
-+
-+
+Added -i* and -o* options in rhcopy for reading rays from the
-+
+standard input and writing rays from holodeck to standard output.
-+
+This will hopefully be useful in combining rholo with rcontrib.
-+
-+
+Added further checking for coincident (overlapping) flat surfaces,
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+preferring front sides to back sides in the ray intersection
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+calculation.  This only applies to rings and faces, as the other
-+
+surface types would have required additional calculations to
-+
+make them work.  Material transparency is still the primary
-+
+consideration, now followed by ray hit side, followed by
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+modifier definition order in the input.
-+
-+
+Increased octree and object limits to allow scenes with billions
-+
+of primitives.
-+
-+
+Made reciprocity averaging default to "off" in bsdf2ttree, as it seems
-+
+to create more problems than it solves.
-+
-+
+====================
-+
+Version 6.0
-+
-+
+Extensive changes to enable spectral rendering, which defaults to "off"
-+
+to maintain backwards-compatibility with previous versions, with the
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+exception of the ambient file format, which is changed.  The MAXCSAMP
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+macro, which defaults to 24, sets the maximum number of spectral samples.
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+The actual number of samples is set by the "-cs" option, which defaults
-+
+to 3 for rpict, rtrace, and rcontrib.  The latter two programs support
-+
+straight spectral output, but rpict is initially restricted to
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+tristimulus output pictures.  New pattern primitives "spectrum",
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+"specfile", and "specfunc" have been added as a means to specify
-+
+spectral reflectance, emittance, etc. to materials that still have
-+
+only 3 color channels.  Those RGB channels will still affect the
-+
+spectrum if used.  Unfortunately photon-mapping is currently broken when
-+
+spectral sampling is enabled, but we will fix this as soon as possible.
-+
+Calculation overhead appears to be approximately 10-15% for RGB
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+renderings compared to version 5.4a.
-+
-+
+Added spectral rendering to rvu as well, and made -cs and -cw
-+
+options standard across the rendering library.  I also brought
-+
+mkillum, ranimove, rsensor, and mksource into the fold.  These
-+
+tools were broken in the initial release.  (Hopefully, they are
-+
+working now, but none have been tested as yet.)
-+
+There was also an indexing bug in the spectral->RGB conversions
-+
+that made reds into blues and vice versa, which has been fixed.
-+
-+
+Added i/o for spectral pictures to rmtxop, the first program that can
-+
+ingest them.  (Only rtrace, rcontrib, and rfluxmtx can render them.)

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Comparing ray/doc/notes/ReleaseNotes (file contents): Revision 1.405 by greg, Tue Mar 8 22:27:56 2022 UTC vs. Revision 1.430 by greg, Tue Nov 21 01:36:32 2023 UTC

Diff Legend

Comparing ray/doc/notes/ReleaseNotes (file contents):
Revision 1.405 by greg, Tue Mar 8 22:27:56 2022 UTC vs.
Revision 1.430 by greg, Tue Nov 21 01:36:32 2023 UTC