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transformBoundingSphere optimization

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scrawl 2015-04-30 17:17:13 +02:00
parent a98dc78cc5
commit 15bdb7db01
1 changed files with 7 additions and 6 deletions
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13
components/sceneutil/util.cpp
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@ -20,17 +20,18 @@ void transformBoundingSphere (const osg::Matrix& matrix, osg::BoundingSphere& bs
bsphere._center = bsphere._center*matrix; bsphere._center = bsphere._center*matrix;
xdash -= bsphere._center; xdash -= bsphere._center;
osg::BoundingSphere::value_type len_xdash = xdash.length(); osg::BoundingSphere::value_type sqrlen_xdash = xdash.length2();
ydash -= bsphere._center; ydash -= bsphere._center;
osg::BoundingSphere::value_type len_ydash = ydash.length(); osg::BoundingSphere::value_type sqrlen_ydash = ydash.length2();
zdash -= bsphere._center; zdash -= bsphere._center;
osg::BoundingSphere::value_type len_zdash = zdash.length(); osg::BoundingSphere::value_type sqrlen_zdash = zdash.length2();
bsphere._radius = len_xdash; bsphere._radius = sqrlen_xdash;
if (bsphere._radius<len_ydash) bsphere._radius = len_ydash; if (bsphere._radius<sqrlen_ydash) bsphere._radius = sqrlen_ydash;
if (bsphere._radius<len_zdash) bsphere._radius = len_zdash; if (bsphere._radius<sqrlen_zdash) bsphere._radius = sqrlen_zdash;
bsphere._radius = sqrtf(bsphere._radius);
} }
osg::Vec4f colourFromRGB(unsigned int clr) osg::Vec4f colourFromRGB(unsigned int clr)