Regardless, I still need a way of knowing how the y-coordinate at any
particular point on a height field.


"Tim Nikias" <tim### [at] gmxde> wrote in message
news:3CCED04C.FDF752E4@gmx.de...
> 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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