Replaced instances of "/usr/tmp" with "/tmp" in scripts & documentation
Improved -f option of normpat & added pgblur for image low frequencies
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
minor optimizations
added constants for slightly faster pcomb computation
updated revision number for release 2.0
use pfilt -r for changes in resolution
changed blending to use one line from each edge
fixed discoloration by changing to factor rather than sum in fsub
made Fourier transform optional
changed to Fourier analysis on each primary color
fixed calculation of normalization
added edge blending and resolution options
Initial revision
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