"ingo" <nomail@nomail> wrote:
> "Paul Bourke" <pau### [at] gmailcom> wrote:
> >
> > For example, for a fisheye the points outside the circle are
> > usually deemed to be undefined and shaded as per the background.
> >
> > How does one do this with the user_defined camera? That is, specify that
> > some positions should be assigned the background colour.
>
> I thought it did it automatic?
> [code]
>

I have not yet played with the new user-defined camera, so I ran your code just
to see what it produces. ;-)

I changed your background{rgb 1} to rgb <0,1,0>, to give myself a better
understanding of the rendered result and how it relates to Paul Bourke's
question.

The background *within* your box map does indeed show up as green now-- but does
PB's question concern the *surrounding* area? That renders as black, regardless
of the background color.

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