From: Mikko Rasa <tdb@tdb.fi>
Date: Wed, 15 Oct 2014 21:04:53 +0000 (+0300)
Subject: Add an empty flag to BoundingSphere
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=7fed55840f8482f8aa961f06f3f8f5b5af2d85c1;hp=7fed55840f8482f8aa961f06f3f8f5b5af2d85c1;p=libs%2Fmath.git

Add an empty flag to BoundingSphere

Useful for distinguishing a bounding sphere that has nothing in it from
one that contains a single point.
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