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

Comparing ray/doc/notes/ReleaseNotes (file contents):
Revision 1.434 by greg, Sat Dec 2 00:42:21 2023 UTC vs.
Revision 1.478 by greg, Wed Mar 19 01:18:20 2025 UTC

+of them.
+Added spectral picture support to rcrop and radcompare.
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+Added new utility, rcomb, which is something like a combination
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+of rmtxop and pcomb, it works with all the inputs and
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+outputs that rmtxop handles, but allows for general expressions
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+like those in pcomb for putting matrices together, working on
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+an element at a time.  (No resizing of matrices or accessing
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+neighboring elements, as permitted in pcomb.)  It saves memory
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+over rmtxop by operating on a row at a time, so can handle
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+input and output matrices with any number of rows.  It does
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+provide for a single matrix-multiplication operation at the end,
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+which only requires memory for that final matrix.
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+Added support for filtering hyperspectral images to pfilt.
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+Added support for 1- and 3-component float matrix i/o to
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+pcomb to allow for better interoperability.
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+Added support for -co+ option to rtpict, so it can directly
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+produce hyperspectral images.
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+Added new "specdata" and "specpict" primitives to support
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+interpolated spectral data files and hyperspectral images
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+as patterns.
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+Added support for multispectal sampling in rsensor, which will
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+put out as many color channels as specified in any -cs option
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+(default is 3 for RGB).
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+Added ability of mgf2rad to convert spectral data at least
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+for light, glow, plastic, and metal primitive types.  Need
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+to use new '-s' option to get new output.
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+Added handling of spectral images to rcode2bmp script.
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+Minor change to rcollate to allow explicit byte records to
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+be any specified length without checks against header input.
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+Added new hemisphere type to rfluxmtx, "h=cie" for CIE sky
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+scanner positions.  These are 145 patches with identical
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+row counts to Tregenza, but starting from a different
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+azimuth and reversing row directions at adjacent altitudes.
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+Added optimization for long argument lists and arrays in
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+the calcomp routines used for rendering and in rcalc, etc.
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+Added error estimate spreading to ambient super-sampling
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+algorithm (-as) to improve performance especially in
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+scenes with sharp cut-offs.
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+Added -i option to gendaymtx to match -i option of gendaylit.
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+Thanks to Yongqing for initial implementation.
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+Changed rcrop so negative #rows or #cols counts back from end.
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+Added rcomb -n option for multi-processing of very large matrices.
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+Made it so rsplit and rlam can handle any number of input files
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+up to active open file descriptor limit.
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+Taoning Wang added genssky tool for generating spectral sky
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+descriptions.
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+Taoning added gensdaymtx utility based on gendaymtx, and
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+added epw2wea -a option to include required information.
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+Fixed bug introduced in Auguest 2022 (5.4 release) in distant
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+light source sampling, which caused aiming failures.  (Thanks
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+to Mike DiPompeo of LightStanza for reporting the issue.)
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+Added rxpict rendering tool based on C++ RpictSimulManager class.
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+Multi-processing and spectral output are supported.
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+Wrote rxpiece tool that will render pictures using tiling and
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+can handle different output formats and hyperspectral pictures.
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+Only runs on a single machine, however -- no NFS locking on
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+shared volumes.  Mainly a demonstration tool for RpictSimulManager
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+C++ class, but may have its uses.
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+Fixed a bug in BSDF sampling of sources pointed out by
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+David Geisler-Moroder, which tended to overestimate specular
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+contributions for some BSDFs.
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+Added crude ability to read and convert spectra to RGB in ximage,
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+ra_bmp, ra_ps, and ra_rgbe programs.  Also updated fast tone-mapping
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+library to handle spectral HSR inputs at the same time.  HSR
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+input handling was added in a similar fashion to pcond and pvalue
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+for convenience.
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+Added handling of hyperspectral images to normtiff, a handy program
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+for quickly tone-mapping Radiance RGBE, XYZE, and now hyperspectral
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+pictures, as well as IEEE float or LogLuv TIFFs.
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+Added handling of hyperspectral pictures to pextrem, though
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+results are still reported in RGB.
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+Added accurate conversion of hyperspectral pictures to ra_xyze.
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+Added hyperspectral picture conversion to ra_tiff, with accurate
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+color when targeting 16-bit/comp., LogLuv, and float utput,
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+and the approximate method for 24-bit RGB.
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+Taoning added genssky -L option to specify global and diffuse
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+illuminance values for output calibration.
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+Created C++ class for rcontrib and example tool rxcontrib, which
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+is an optional compile in the src/rt directory.  The output
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+model is more general in some respects and the operations more
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+efficient, but standard output is not supported, nor is ASCII
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+results data.
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+Added strnstr.c compatibility module in ray/src/common, since
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+it isn't present on Linux derivatives.
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+Added WGMDfunc material type with programmable roughness and
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+separate modifier paths for the different components.
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+Added gensurf -i option at the request of Peter Apian-Bennewitz
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+to reverse surface normals, mostly for data input, when it is
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+a bit more difficult to adjust.
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+Added rad -N option to rholo call for multiprocessing when
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+mkillum and/or mkpmap are involved in octree prep.
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+Added ability of gendaymtx to read EPW as well as WEA files.
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+When EPW input is provided, the 3-hour average dew point is
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+used to compute a more accurate precipitable water content
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+value.  It currently does not use these data directly from
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+the EPW input, relying instead on a dew-point-to-W calculation.
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+This follows the request and recommendations of David G-M.
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+Removed limitation in rfluxmtx, which was disallowing distant
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+and local receivers. Found this to be a perfectly valid approach
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+for some annual daylighting scenarios.

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Comparing ray/doc/notes/ReleaseNotes (file contents): Revision 1.434 by greg, Sat Dec 2 00:42:21 2023 UTC vs. Revision 1.478 by greg, Wed Mar 19 01:18:20 2025 UTC

Diff Legend

Comparing ray/doc/notes/ReleaseNotes (file contents):
Revision 1.434 by greg, Sat Dec 2 00:42:21 2023 UTC vs.
Revision 1.478 by greg, Wed Mar 19 01:18:20 2025 UTC