Oleguer Vilella wrote:
> I want to do a DNA chain. I found that in Pov-Ray I can do spirals and I
> think the spiral can looks like a DNA chain, but when I tray to render the
> code it doesn't work. The code is:
> 
> normal
>     {
>         spiral1 5 [, 0 ]
>       pigment { color Red }
>      scale
>      rotate
>      translate
> }
> 
> Do you know what is the problem?

The problem is that this is not a valid normal statement.

Valid (inside a texture{}) would be

normal {
   spiral1 5
}

the rest is nonsense.

But of course this would not create a spiral, it would just modify the 
normal of the object it is applied to.

Apart from that the shape of a DNA chain is not a spiral but a helix (a 
double helix to be precise).

Christoph

-- 
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 06 Jul. 2004 _____./\/^>_*_<^\/\.______

Post a reply to this message