I am trying to load a long sequence of TGA files into this image map:
image_map { tga concat("D:\\sketches\\follow", str(clock*600,-4,0), ".tga")

in the folder Sketches folder on my D drive there are 1800 files starting 
with
follow0000.tga
to
follow1800.tga

Can someone see a problem with the string here? I want to read in only the 
first 600 while the clock moves from 0.1 to 1.
The whole code segment is:
#local D=
  pigment{
   image_map { tga concat("D:\\sketches\\follow", str(clock*600,-4,0), 
".tga")   //group.tga is excellent   1352
  map_type 2 interpolate 2 once } translate <0, 0,0> scale 1 + clock*2 }

and I am getting a Parse Error that says: Cannot open TGA image.
thanks much for any help.
d

-- 

dhm### [at] comcastnet
http://www.dennismiller.neu.edu

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