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--- 2018-10-01 Release 7.28.0 ---
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This major release of BRL-CAD incorporates a new feature for caching
of raytrace acceleration structures used when working with explicit
boundary representation (BREP) Non-uniform Rational Basis Spline
(NURBS) solids. This will result in significant improvements to
run times when repeatedly raytracing BREP solids.
Support for terrain import has been significantly expanded with the
addition of a new Geospatial Data Abstraction Library (GDAL) based
importer to the gcv conversion tool. GDAL brings with it support for
dozens of different terrain data formats.
Also new in this release are a greatly improved graphical geometry
overlap resolving tool and support in the MGED search command for
an "exec" option which will allow users to execute MGED commands
on search results.
The MGED facetize command for generating polygonal geometry from
BRL-CAD objects has received significant attention, including the
incorporation of a "per-region" conversion mode, new conversion
methodologies and usability enhancements.
* fixed crash mixing flat and full path MGED searches - Cliff Yapp
* improved MGED ls command's help message - Cliff Yapp
* added -exec option to MGED's search command - Peter Pronai
* added new MGED 'lint' command for finding bad geometry - Cliff Yapp
* improved lingering framebuffer CPU utilization - Sean Morrison
* updated 'draw -S' option to work with shaded objects - Bob Parker
* fixed numerous fb* command bugs w/ X11 framebuffers - Sean Morrison
* extended fbpoint support to more varied framebuffers - Sean Morrison
* improved gqa plot file handling and documentation - Sean Morrison
* improved rt usage reporting with categorized options - Sean Morrison
* removed rt -f framerate option for animating shaders - Sean Morrison
* removed "pixd" support: rt -d option and pixdsplit - Sean Morrison
* fixed fbserv timeout errors on some BSD platforms - Cezar Elnazli
* fixed rtcheck bug handling reversed overlap pairs - Saran Narayan
* new workflow GUI for detecting and fixing geometry overlap errors
- Sean Morrison, Nick Reed, Saran Narayan
* fixed gqa printing wrong grid size on no overlaps - Saran Narayan
* fixed pix-png creating corrupt PNG files on Windows - Sean Morrison
* added "check overlaps" menu option to Archer - Saran Narayan
* improved 'idents' command portability - Daniel Ramirez, Cliff Yapp
* changed remrt/rtsrv to no longer report overlaps - Sean Morrison
* improved GUI of MGED's Overlap Tool - Saran Narayan
* fixed geopmetry directory building bug in remrt/rtsrv - Sean Morrison
* fixed gcv problem with full paths on Windows - Cliff Yapp
* removed precision limitation in NIRT input parsing - Cliff Yapp
* added new example geometry models: chess and die pieces - Jeff Sieu
* new 'openid' command for listing available region IDs - Nick Reed
* improved triangle mesh error detection for "bot check" command
- Nick Reed, Cliff Yapp, Jon Engbert
* fixed graphical mode initial page loading in brlman - Cliff Yapp
* added gcv import support for 20+ terrain formats - Cliff Yapp
* added 'bot_dump' command to MGED - Nick Reed
* ported MGED 'screengrab' command to Windows - Nick Reed
* removed spectral tracing: libmultispectral & rttherm - Cliff Yapp
* sped up raytracing by 10% - Cezar Elnazli
