Fixed usage message
Added -T option to xshowtrace to trace rays to light sources
Continued ANSIfication, and other fixes and clarifications.
Fixed size of command line buffers, and allow spaces in input file paths.
Broke standard.h into rtio.h, rterror.h, rtmath.h, and rtmisc.h
Changes and check-in for 3.5 release Includes new source files and modifications not recorded for many years See ray/doc/notes/ReleaseNotes for notes between 3.1 and 3.5 release
fixed to work with new window naming in x11image.c
added -c 256 to ximage command to avoid 24-bit mode
deeper search for IRIS 4D window manager
added pclose() call for nicer exit
fixed bugs resulting from changes to image.c
updated revision number for release 2.0
Improved handling of scanline ordering
changed command names and options
made xshowtrace work with twm and other nasty window managers
minor compiler complaints
added -f option to x11image command
added -s option to slow trace
Initial revision
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