From what I can gather, it seems similar to MPovs Uv mapping?  Does it 
deform the object or the texture? Your right, much of that was beyond 
what little French I can speak, I can read enough to get a general idea 
I hope....


> Shawn wrote:
> 
>> Can anyone point me towards creating a decent looking brick arch? I did
>> try using a radial bump map and a high frequency. While it looked quite
>> funky, it wasn't what I was looking for. Is there a way to take an
>> existing texture and bend it?
> 
> 
> You may find interest at a warp patch I made sometime ago...
> see http://pov.grimbert.cjb.net/ 
> in the patch section, Warps link.
> 
> The transformation are for cylinders, spheres, cones and tori; in both direction
> (from bent to straight and vice-versa).
> Beware, it's in french, so you may need a translation... And I do not think it
> is currently part of any MegaPov (but it also seems that there is something
> similar already in a MegaPov)

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