Ken wrote:

> I imagine with as many objects as the tree macro produces a LOT of bounding
> boxes must be computed. It will sure help with the final render time but
> the parse time suffers as a result. The amount of time to compute the light
> buffers will also increase when there are many objects present in a scene.
> Manual bounding might help with this but be sure to turn off automatic
> bounding if you do or POV might just ignore your bounding.

This is not necessary. In this case of manual bounding of unions, according to the
POV manual "if you do manually bound a union we presume you really want it bound.
For safety sake we do not presume to remove such bounds. " Never underestimate the
user-friendliness of the POV-team ;-)

G.

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