Bob Hughes wrote in message <39b3a111@news.povray.org>...
>I was watching a show about a 3D modeling apparatus on the University
>Channel (UCLA I think).  It laminated layers of paper together to create
>real life models from computer generated ones.  Second time I've seen that.
>Also, there's the plastic resin (?) modeling machines which build layer
upon
>layer up, similar to plotters.
>Obviously you could never do that with a POV-Ray scene file until you had a
>tessellated mesh object.

Doing this from POV-Ray wouldn't be a problem -- just render a series of
slices of your scene as black-and-white images, and use the resulting layers
as your input for the modeller.

Mark

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