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
moved invmat to invmat4.c
updated revision number for release 2.0
removed conditional compiles
changed setident4() into a macro
changed handling of matrix transformations with new MAT4 & XF types
improved portability of bcopy()
got rid of loop in multv3()
reduced numerical instability of invmat() routine
Initial revision
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