Added seeding of random number generator with -u+ rendering option
Added binary i/o options to total and piped output to rtcontrib
Created rtcontrib program for computing ray contributions and coefficients
Continued ANSIfication. There are only bits and pieces left now.
Various platform compatibility fixes.
Moved some more platform dependencies to common header files. Included a few necessary system headers.
Replaced most outdated BSD function calls with their posix equivalents, and cleaned up a few other platform dependencies.
Abstracted process and path handling for Windows. Renamed FLOAT to RREAL because of conflict on Windows. Added conditional compiles for some signal handlers.
Macros for setting binary file mode. Replacing MSDOS by _WIN32.
Changed (char *) casts for memory copies to (void *) and other fixes
Replaced inline copyright notice with #include "copyright.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
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