Ansification and prototypes.
Instrumented headers against multiple inclusion and for use from C++. Moved includes in headers out of "C" scope.
Replaced most outdated BSD function calls with their posix equivalents, and cleaned up a few other platform dependencies.
Changed instances of "int4" to "int32" and "int2" to "int16"
Moved dircode.c and fixed prototype compiles in hd directory
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 to dissolve when redrawing large numbers of samples
improved edge precheck added odRedrawAll() routine
fixed odUpdate() for multiple views
added presence map for quick check of duplicate pixels
improved sample insertion to take better samples fixed and improved tone mapping
Initial revision
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