"St." <dot### [at] dotcom> wrote in message news:3e11bd58@news.povray.org...
>
> "Ib Rasmussen" <ib### [at] ibrasdk> wrote in message
> news:3E1### [at] ibrasdk...
> >
> >
> > Tor Olav Kristensen wrote:

> > Oops, yes, the R should be outside the pow-function. Thanks.
>
>
>    I've just tried both ways, and both work??

       Well, both DO work, but I've just discovered that I can't use
Tors' (correct) way unless I translate the object again and I'm not
doing that because it took *AGES* to get it where it is now with Ibs'
way. (Sorry Ib).

    So I now I have a new problem and it may be connected with the
above but I'm not sure. In Lutz-Peters' code, right at the very end,
there is the 'no_shadow' comment and of course, it produces no
shadows, but if I comment it out, it still produces no shadows. The
only way I can get shadows back in the *whole* scene is by taking the
Lissajous Knot code out and the shadows come back again.

  Any ideas about what's causing this?

    ~Steve~

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