Okay, I used 'trace' in MegaPov for the first time because of Chris Huff's
prodding :-) well it seemed like prodding.
It was tough going for me but I finally managed to animate the camera using it
in a fly-over of a height field.  The air turbulence made me get out the
air-sickness bag but when I recovered I attempted to use the trace vectors in a
cubic spline of 6 evenly distanced points by writing the vectors out to a text
file first.  Since I only used 6 points I made a #while loop to do a simulated
run which had the 6 virtual frames, then the trace values were #declared and
#write used to put into a file.  That file was then used as 'spline' input.
Anyhow, it turned out very smooth of course, if still topsy-turvy.  This
animation shows the non-splined, raw, trace data version during the first half
and the splined version during second half.  Quick small file so I suggest
looping it.
I was thinking I should probably post it to p.t.s-f. too, I had trouble
discerning the two methods with #if directives so give me awhile yet to try and
fix that up.  If I can't very soon I'll post it anyway.

Bob
--
omniVerse http://users.aol.com/persistenceofv/all.htm

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Download 'Tracehfs.mpg' (481 KB)