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On Tue, 2 Apr 2002 23:50:35 +0200, "JRG" <jrg### [at] hotmail com> wrote:
> > An inverted box is infinite.
>
> No, it's not.
it is
> At least not from POV-Ray's point of view (just try).
ok, try inverse box - it is hole in everything
// begin scene
box{-1 1 translate z*10 inverse}
// end scene
Warning: Camera is _inside_ a non-hollow object.
And put camera anywhere to test where box will finish.
But You can be mistaken by:
// begin scene
#include "strings"
#local B=box{-1 1 translate z*10 inverse}
#warning VStr(min_extent(B))
#warning VStr(max_extent(B))
// end scene
but min/max_extent returns coordinates of _bounding box_ which isn't object but
speed trick - as documentation says: "the bounding box does not represent the
actual dimensions of the object".
ABX
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