As Ken said, HF is one way (guess inversed is 2nd way).
Also a 3rd way:

plane {z,0 clipped_by {box {<0,0,-0.1>,<1,1,0.1>}} //height_field instead?
 pigment {image_map {
  gif "yourlogo.gif" once interpolate 2}} //replace with your file&type
  normal {bump_map {
   gif "yourlogo.gif" bump_size 1 interpolate 2}}
 translate <-.5,-.5,0> //centered
  scale <1,1,1> //resize to correct dimensions here
 }

Although not a true 3D object it can be good for something too, maybe.
Keep in mind the black/low, white/high concept same for the HF and 'inverse' 
can always be used too. A 4th way would be using this on a height field but it 
gets redundant, up to you.

Message <362### [at] globalservenet>, Martin Crook  typed...
>
>ok- so I'm using POV3.1 under windoze95, and am going through the
>tutorial conscientiously cutting text from the examples and pasting into
>the main window-BUT-How-o-how would I like to know why it won't
>recognize end of line and paragraph formatting; it's just one big line
>(still renders ok but it's a bugger to read properly)
>
>Any suggestions?
>

-- 
 omniVERSE: beyond the universe
  http://members.aol.com/inversez/POVring.html
=Bob

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