Eliminated some compiler warnings.
Increased minimum view angle from 3 to 5 degrees
Changed logic so small view angles are prevented along with parallel views
Continued ANSIfication, and other fixes and clarifications.
Fixed typing/prototype of getheader() and its callback.
Fixed size of command line buffer, and allow spaces in input file path.
Various compatibility fixes.
Added grouping parens to reduce ambiguity warnings.
Eliminated copystruct() macro, which is unnecessary in ANSI. Reduced ambiguity warnings for nested if/if/else clauses.
Macros for setting binary file mode. Replacing MSDOS by _WIN32.
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
changed getheader() to listen to return value of passed function
added -I option for precomputed histogram
changed -t option to -u, -d option to -x and -b option to -d
changed -m option to read in color warp map (old -m now -d)
added -i option to take fixation points on standard input
changed to histogram truncation made veiling reflection modify FOV sample image
fixed bad calls to log() in fovhist()
added -m option for putting out luminance mapping function
corrected tests in check2do()
fixed bugs in color scaling
changed check for significant veiling
finally got variable acuity working
Initial revision
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