Cool!
My first thought was to use reflection and no object for a Text object. All
you'd have to do is inverse every letter.
 Then I said to my self  'Hey I've played around with these in POV3.1' Before
POV had PHOTONS I made a macro that would calculate the reflection of any
polygon to a plane on the y=0 plane.'  I never use in a full scene. What you
talked about would be the reverse of that macro.
 You've gave me some ideas that I can play around with now.

James Foster wrote:

> we've all seen these cool-looking light patterns created from shining
> photons through tori and such. Is it possible to design an object to
> give a desired light pattern, such as readable letters?
>
> I've always wanted to be able to do this. After seeing povrays results
> when using photons i got excited thinking it's very possible to reverse
> what it does to decide where the photons go, to come up with something
> to say what the object should be like.
>
> what are your thought? im/possible un/cool
>
> James

--
Have Fun!

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