Wasn't it Carl Hoff who wrote:
>(2)  I learned rather fast that when testing my CSG that if I just had a
>very simple piece I was testing that I also needed the +MB0 flag turned on.
>However I could have as few as 3 frame level objects and I no longer needed
>the +MB0 flag.  The documentaion says the default setting is +MB25.  What is
>the relationship between the number of "objects" used in this flag and what
>the message window refers to as "frame level objects"?

I guess that what got documented is the default default. What the POVRay
executable would do if nothing else changed the setting.

The supplied version of the master POVRAY.INI contains this code, which
countermands that default.

; Sets minimum number of objects before auto bounding kicks in.
;
Bounding_Threshold = 3

Which is the verbose way of saying +MB3.

If you remove that setting from POVRAY.INI then you'll find that scenes
with less than 25 frame level objects have no bounding boxes.

-- 
Mike Williams
Gentleman of Leisure

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