Nick Holliman wrote:
>Hi,
>I'm using clipped_by to slice a central chunk out of a scene (povcatray) and
>find it slows down rendering a lot, a very lot.
>Anyone know if this is normal ?
>
>Thanks, Nick.
>

I assume you are doing it like this...

union {
// Scene
clipped_by {...}
}

It seems like povray is not splitting the union in this case (you can see
only 1 frame level object), so it needs to intersect every object in the
scene instead of using the bounding hierarchy.  I don't know of an easy
workaround in the scene file (except applying the clipped_by to every
object individually)

Andrew

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