Ah I can hear the voices of my fore-fathers crying out..."RTFM! RTFM!" I 
think I'll experiment with both suggestions, and well as Marcs. I think 
an isosurface would likely make more sense for what I want to do.
Might even post the result on p.b.images and see if it weathers the 
cannonade. :-)

Thanks!
Shawn

Geoff Wedig wrote:


> If all you want to do is texture it, you can use the following function:
> 
> function { funct(sqrt(x*x+y*y), atan2(y,x), z) }
> 
> This bends a section of the xy plane around the origin. Funct can be any
> pigment function you like. This would allow, for example, you to use a
> gradient to create radial stripes, but also allows for stranger things. 
> Applied correctly, you should be able to create your arch.
> 
> Note that as the distance from the origin gets larger, the texture is going
> to scale up.  This shouldn't be too much of a problem for what you're doing.
> 
> The other option is to create individual objects.  Using the same function
> and a rounded cube iso (or any other iso for that matter), you can create
> bricks that are curved.
> 
> Geoff

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