You can find some clues here:

http://news.povray.org/povray.general/18830/122057


Tor Olav


Rafal 'Raf256' Maj wrote:
>Hellow, I have some isosurface function fun(x,y,z) that "starts" in <0,0,0>
>and ends in <0,1,0> (i.e. an isosurface cylinder <0,0,0>-<0,1,0>)
>
>how can I transform this isosurface to get shape that starts in W1 and ends
>in W2 ?
>I need to transform the formula, not to use rotate, translate etc...
>
>it would be something like
>#declare a = W1.x + ......
>fun( x*sin(a)+y*cos(a) .... )
>
>TIA :)

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