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
renamed noise3{a,b,c} to noise3{x,y,z}
relaxed error on fractal noise function -- wasn't helping
portability fixes (removed gcc warnings)
Removed problematic math function declarations
updated revision number for release 2.0
made interpolation of noise3() function smoother
minor changes
changed noise3 initialization
moved test in fnoise3() (optimization)
improved speed of fnoise3() with integer math
smaller EPSILON for fnoise3
Initial revision
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