Alain <aze### [at] qwertyorg> wrote:

> > Is it possible to combine the parallel keyword with a cylindrical light to give
> > parallel light rays contrained by the cylinder?
> >
> > Thanks
> > Stuart
> >
> >
>
> It's possible, but, as clipka posted, may not be required.
>
> The only time where it can make a difference is when you use photons.
>
>
> Alain

Thanks for the help guys

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