sorry to bother you again, but is there a way to make a spiral with a
trapezoid cross section, without rendering a lot of thin trapezoids rotated
and with a changing height?
   __
  /  \
 /    \     - Trapeziod
/______\

Ken wrote:
>
>BorisW37 wrote:
>>
>> Is there an inc file out there, or a feature already included in Pov-Ray
>> that would let me easily make a Ribbon of a certain thickness and width
>> turned into a spiral with a certain radius and a set pitch. If you are
>> confused think of the DNA double helix, and the twisting ribbon. There are
>> 2 of them in DNA, but i just need 1
>
>? http://povray.org/resources/links/3D_Programs/Shells_Spirals_and_Helixes/
>
>Ken Tyler
>

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