--- ray/doc/notes/ReleaseNotes 2020/09/09 21:28:19 1.377 +++ ray/doc/notes/ReleaseNotes 2021/12/07 23:49:50 1.399 @@ -2390,3 +2390,111 @@ seems unnecessary. Made tool more robust. Added -t option to rcontrib (and rfluxmtx) to report progress after the given number of seconds. + +Added "test" target to makeall to run unit tests. + +Modified bsdf2ttree to allow different parameters per input SIR file. + +Fixed issues with very large matrix files (> 2GB) in dctimestep, rmtxop, +and rcollate. + +Added -rf and -rb options to rmtxop to load front or back reflectance +matrix data from XML file rather than transmission. (Lars Grobe suggested.) + +Improved behavior for coincident surfaces with different materials. +Rather than returning one surface or the other based on floating-point +vagaries, opaque materials are now preferred over transparent ones. +If the materials are both transparent or both opaque, then whichever +surface appeared later in the scene description will be selected. +This came of a request for consistent behavior with legal CAD output +from Peter Apian-Bennewitz. + +Added explicit tests for on-edge intersections with polygons. This should +eliminate stray rays and tiny light leaks that often appear even in +well-constructed geometry. + +Added "-s up" option to pabopto2bsdf to allow for 180 degree symmetry, +meaning that data repeats after 180 degree rotation (as distinguished +from "-s bilateral" whose data is mirrored about a vertical plane). +Thanks to Helen Rose Wilson for the suggestion and informing me that +such a thing exists. + +Removed upper limit on number of modifiers in rcontrib. + +Put cap on maximum ambient gradient to avoid over-extrapolation of +poorly computed irradiance cache values. + +Added robjutil +T option to triangulate all faces in .OBJ description. + +Altered BSDF library to have both front and back diffuse transmittance +values, which can be different. This was necessary to avoid issues +caused by measurement and modeling discrepancies. + +Added pabopto2bsdf -g option to cull near-grazing scattering to avoid +issues with noise and negative values. + +Increased default dynamic range from 32 to 100 in pcond and normtiff. + +Added -o and -n options to genbox to create .OBJ output and segment +edges and corners for transparent materials. Also added -s option +to control smoothing for .OBJ and Radiance with segmented rounding. + +Made it so robjutil with the +r option for Radiance output now +produces normal smoothing unless normals are removed with -n. + +Added exposure preservation to pcompos when possible (i.e., when +there is only one input or inputs agree on exposure). + +Added -DSHARP_RGB compile-time option to use sharp RGB color space +rather than historic default. This can make for more accurate color +calculations, but requires that materials be recalibrated. The +PRIMARIES= line is also produced on output from rpict or rvu with +the correct set of primaries based on how the system was compiled. + +Added automatic flushing to the output of total, except when the -r +(running subtotals) option is used. + +Improved behavior of little-used -aw option, so that it avoids sea-level +rise caused by adding its own estimate back into the ambient level remainder. +It ended up being simple enough to derate the final average by the factor +corresponding to average surface absorpition, thus removing the average +from the final bounce estimate. + +Introduced ies2rad upgrades by Randolph Fritz. Randolph says it +fixes the following problems: + + 1. Generates correct Radiance geometry for spheres in 1995, 2002, + and 2019 IES files. + + 2. Generates correct Radiance geometry for vertical cylinders that + are taller than they are wide. + + 3. Ignores the file source ("File Generation Type") field in the + 2019 version of the file, which would otherwise be incorrectly used + as an output multiplier. + + It also offers the following enhancements: + + 1. Shape information is included in the .rad file comments. + + 2. 1995, 2002, and 2019-version luminous opening geometry is + accounted for. + + 3. The 2002 and 2019 IES file versions are recognized and + processed appropriately. + + 4. I have made an attempt to do something intelligent with less + common "luminous opening" shapes in the 1995, 2002, and 2019 versions + of the standard, though I have not implemented any support for new + geometry; approximations are substituted and warning messages issued. + Unfortunately, this code is not tested, since I don't have any IES + files that use these shapes. + +Added support for depth-of-field blurring in vwrays using -pd option. +Also, made -c count work with vwrays -i, producing multiple samples +per indicated pixel position. At the same time, support for the -pd +option was added to rtpict, which calls on vwrays for its samples. + +Fixed issue with BSDFs that didn't obey reciprocity, where direct +sampling wasn't following exactly with indirect sampling. This was +discovered and reported by Jon Sargent.