Op 08/03/2023 om 17:37 schreef Mike Miller:
> Thanks Thomas. Very nice - big help.
> Objects not seen by the camera but reflecting in visible surfaces could present
> a problem. I guess you could 'add-back' objects not seen but within a distance
> of the frustum - if that object type was important to the reflections in the
> view.
> Mike.
> 
> 
Indeed. It does not happen often, but then... ;-)

Found the demo. Attached (the macro is written out in the scene again; 
can be replaced by a call to the external macro file of course).

-- 
Thomas

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Attachments:
Download 'gt_visibilitytest.pov.txt' (5 KB)