Give your Hf a texture or colour, but beyond that it's hard to
tell without seeing all of your code. 

Good luck.

Chuck Roberts wrote:
> 
> I have POV 3.1g for Win 95 and am trying to render a heightfield which
> is a 16 color GIF. My code for it is:
> height_field {gif "d:\progra~1\POV-ray\a-images\aztec1.gif"
>   scale <4,4,4>
>   translate <-2,2,0>
> 
>   }
> 
> But it just renders as a black rectangle. The first half of the colors
> in the GIF are shades of "black" (i.e. real close to black). Do I need
> to vary my colors in the color palette? Some of my colors are non-black,
> but how come I don't see any sign of those? I also have 2 light sources
> to make sure I see the surface of the object.
> 
> BTW, my picture is a picture of several aztec glyphs. And I used Paint
> Shop Pro 3.11 (for win 3.1) to save the GIF to 16 colors.

-- 
Cheers
Steve

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