I guess it has to do with the docs. When searching for trace, you
get the trace-macro from the SDL-Raytracer within POV,
not the trace() of POV.

Christoph Hormann wrote:

> Alastair Murray wrote:
> >
> > What I need is to know the y coordinate of any particular <x,z> coordinate
> > of a height_field.
> >
> > I thought this could maybe be done with the Trace macro but I think this is
> > only for spheres.
>
> Which leads to the question why you think 'trace()' is a macro and why it
> should only work on spheres...
>
> See: http://www.povray.org/working-docs/id000139.html#6_1_4_6
>
> Christoph
>
> --
> POV-Ray tutorials, IsoWood include,
> TransSkin and more: http://www.tu-bs.de/~y0013390/
> Last updated 26 Apr. 2002 _____./\/^>_*_<^\/\.______

--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Email: Tim### [at] gmxde

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