Tim Attwood wrote:
>> Is there a way to calculate and/or export the internal volumes of the 
>> finite
>> CSG objects in a POV-Ray scene?
> 
> Using extents of an object you can calculate the
> volume of the bounding box, then use a large number of
> random point samples within the bounding box to determine
> the percent of samples that are inside the object, then
> the volume can be estimated to be that percent of the
> bounding volume. This is sort of like filling a real object
> with water then measuring the water.


A better way to sample the volume (although requiring external 
processing) may be to render a series of slices of the object and then 
sum the number of covered pixels in those images. This can be done using 
an object pattern mapped to a plane and animating the translation of the 
pattern along the axis perpendicular to the plane, much like a CAT-scan 
really.

-- 
Daniel Nilsson
going back to lurking mode...

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