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Comparing ray/doc/notes/ReleaseNotes (file contents):
Revision 1.457 by greg, Tue Sep 10 20:24:42 2024 UTC vs.
Revision 1.478 by greg, Wed Mar 19 01:18:20 2025 UTC

# Line 2714 | Line 2714 | to Mike DiPompeo of LightStanza for reporting the issu
2714   Added rxpict rendering tool based on C++ RpictSimulManager class.
2715   Multi-processing and spectral output are supported.
2716  
2717 + Wrote rxpiece tool that will render pictures using tiling and
2718 + can handle different output formats and hyperspectral pictures.
2719 + Only runs on a single machine, however -- no NFS locking on
2720 + shared volumes.  Mainly a demonstration tool for RpictSimulManager
2721 + C++ class, but may have its uses.
2722 +
2723 + Fixed a bug in BSDF sampling of sources pointed out by
2724 + David Geisler-Moroder, which tended to overestimate specular
2725 + contributions for some BSDFs.
2726 +
2727   Added crude ability to read and convert spectra to RGB in ximage,
2728 < ra_bmp, and ra_rgbe programs.  Also updated fast tone-mapping
2729 < library to handle spectral HSR inputs at the same time.
2728 > ra_bmp, ra_ps, and ra_rgbe programs.  Also updated fast tone-mapping
2729 > library to handle spectral HSR inputs at the same time.  HSR
2730 > input handling was added in a similar fashion to pcond and pvalue
2731 > for convenience.
2732 >
2733 > Added handling of hyperspectral images to normtiff, a handy program
2734 > for quickly tone-mapping Radiance RGBE, XYZE, and now hyperspectral
2735 > pictures, as well as IEEE float or LogLuv TIFFs.
2736 >
2737 > Added handling of hyperspectral pictures to pextrem, though
2738 > results are still reported in RGB.
2739 >
2740 > Added accurate conversion of hyperspectral pictures to ra_xyze.
2741 >
2742 > Added hyperspectral picture conversion to ra_tiff, with accurate
2743 > color when targeting 16-bit/comp., LogLuv, and float utput,
2744 > and the approximate method for 24-bit RGB.
2745 >
2746 > Taoning added genssky -L option to specify global and diffuse
2747 > illuminance values for output calibration.
2748 >
2749 > Created C++ class for rcontrib and example tool rxcontrib, which
2750 > is an optional compile in the src/rt directory.  The output
2751 > model is more general in some respects and the operations more
2752 > efficient, but standard output is not supported, nor is ASCII
2753 > results data.
2754 >
2755 > Added strnstr.c compatibility module in ray/src/common, since
2756 > it isn't present on Linux derivatives.
2757 >
2758 > Added WGMDfunc material type with programmable roughness and
2759 > separate modifier paths for the different components.
2760 >
2761 > Added gensurf -i option at the request of Peter Apian-Bennewitz
2762 > to reverse surface normals, mostly for data input, when it is
2763 > a bit more difficult to adjust.
2764 >
2765 > Added rad -N option to rholo call for multiprocessing when
2766 > mkillum and/or mkpmap are involved in octree prep.
2767 >
2768 > Added ability of gendaymtx to read EPW as well as WEA files.
2769 > When EPW input is provided, the 3-hour average dew point is
2770 > used to compute a more accurate precipitable water content
2771 > value.  It currently does not use these data directly from
2772 > the EPW input, relying instead on a dew-point-to-W calculation.
2773 > This follows the request and recommendations of David G-M.
2774 >
2775 > Removed limitation in rfluxmtx, which was disallowing distant
2776 > and local receivers. Found this to be a perfectly valid approach
2777 > for some annual daylighting scenarios.

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