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Comparing ray/doc/notes/ReleaseNotes (file contents):
Revision 1.380 by greg, Fri Jan 15 23:16:06 2021 UTC vs.
Revision 1.389 by greg, Sat Mar 27 17:50:18 2021 UTC

# Line 2395 | Line 2395 | Added "test" target to makeall to run unit tests.
2395  
2396   Modified bsdf2ttree to allow different parameters per input SIR file.
2397  
2398 < Fixed issues with very large matrix files (> 2GB) in dctimestep, rmtxop, and rcollate.
2398 > Fixed issues with very large matrix files (> 2GB) in dctimestep, rmtxop,
2399 > and rcollate.
2400 >
2401 > Added -rf and -rb options to rmtxop to load front or back reflectance
2402 > matrix data from XML file rather than transmission.  (Lars Grobe suggested.)
2403 >
2404 > Improved behavior for coincident surfaces with different materials.
2405 > Rather than returning one surface or the other based on floating-point
2406 > vagaries, opaque materials are now preferred over transparent ones.
2407 > If the materials are both transparent or both opaque, then whichever
2408 > surface appeared later in the scene description will be selected.
2409 > This came of a request for consistent behavior with legal CAD output
2410 > from Peter Apian-Bennewitz.
2411 >
2412 > Added explicit tests for on-edge intersections with polygons.  This should
2413 > eliminate stray rays and tiny light leaks that often appear even in
2414 > well-constructed geometry.
2415 >
2416 > Added "-s up" option to pabopto2bsdf to allow for 180 degree symmetry,
2417 > meaning that data repeats after 180 degree rotation (as distinguished
2418 > from "-s bilateral" whose data is mirrored about a vertical plane).
2419 > Thanks to Helen Rose Wilson for the suggestion and informing me that
2420 > such a thing exists.
2421 >
2422 > Removed upper limit on number of modifiers in rcontrib.
2423 >
2424 > Put cap on maximum ambient gradient to avoid over-extrapolation of
2425 > poorly computed irradiance cache values.
2426 >
2427 > Added robjutil +T option to triangulate all faces in .OBJ description.
2428 >
2429 > Altered BSDF library to have both front and back diffuse transmittance
2430 > values, which can be different.  This was necessary to avoid issues
2431 > caused by measurement and modeling discrepancies.

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