"nusuto" <nus### [at] yahooes> wrote in message 
news:web.43f1df8a4c7ce7b86af0f9a10@news.povray.org...
> :-) I'm sorry, I'll try to explain it again:
>
> I have some kind of surface (I say some kind because is not part of the
> official PovRay). I would like to have a "cube" in which the upper face is
> this surface.
> I intersect the surface with boxes in such a way that they are the walls 
> of
> the cube (these plain boxes), but these boxes continue after the hit :-S, 
> I
> mean, I can see them higher than the surface. The perfect situation is 
> that
> these walls stop when hitting the surface.
>
> I think is something like boxes_clipped_by_surface (the main part I want 
> to
> keep "entire" is the surface).
>
> I hope now is more understable (in any case, sorry for my English ;-) ).
>
> Mike Williams <nos### [at] econymdemoncouk> wrote:
>> Wasn't it nusuto who wrote:
>>
>> >2. I have a surface and I would like to make it the upper face of a 
>> >cube.
>> >How can I intersect the other three faces of the cube with my surface? I
>> >mean, when I intersect a box with a surface, I see the whole box, it
>> >doesn't stop at the surface. How can I do that?
>>
>> The hard part is trying to guess what you want. Is it possible that you
>> want surface clipped_by box?
>>
>> --
>> Mike Williams
>> Gentleman of Leisure
>

Hi,

I think that to answer your question you need to specify a bit more about 
this mysterious surface.
Is it possible that your surface is just a surface and has no discernable 
inside or outside?
A short snippet of your code might help here.

Regards,
Chris B.

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