file:                          jcalwrld.jpg
author:     Joel R. Cheves (c)1995 --> compuserve.com 102366.230
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requires jcalwrld.gif: --> heightfield 

about the image: 
Extra Terrestrial Vehicle, sweeps: --> PovCad v.4.01 
heightfield lbm: --> Deluxe Paint II enhanced  
main body of the etv: --> sweep converted by Rob's Triangle smoother

Targa image: --> traced using PovRay v.2
tga-->jpg and lbm-->gif: Graphic Workshop