In article <3a6cbd1a@news.povray.org>, "Alan Holding" 
<man### [at] lineonenet> wrote:

> BTW -Technical query here.  The rear view of the bot is a cheat.  I had to
> comment out the code for the image maps (that's the stylised robot head on
> the chest and the number 23 on the shoulder) as they were being 'projected
> through' to the back.  Anyone know a way to get them onto the front only,
> without having to split the object down the middle and union the two
> different versions (one with maps, one without) back together?  Badly
> phrased, but I hope someone understands what I mean.

One way would be to use a gradient pigment_map to restrict the 
image_mapped portion to the front.

pigment_map {gradient Dir
    [0 ImageMapPigment]
    [0 ImageMapPigment]
    [0 NoImageMapPigment]
    [0 NoImageMapPigment]
}

Or do something similar using layered textures to layer the image_map on 
the base texture. That could be more difficult, though...

If you aren't committed to using an image_map, and are using MegaPOV, 
those designs should be fairly easy to duplicate with the object pattern.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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