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Added new Node/Drawable::s/getInitialBound and Node/Drawable::s/getComputeBoundCallback

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methods and reimplement computeBound so that it passes back a bounding volume rather
than modifying the local one.
This commit is contained in:
Robert Osfield
2005-05-12 14:03:22 +00:00
parent ad2bd31ac8
commit bf4d63f6ea
52 changed files with 337 additions and 377 deletions
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24
examples/osgteapot/osgteapot.cpp
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@@ -226,15 +226,11 @@ class Teapot : public osg::Drawable
}
protected:
virtual ~Teapot() {}
// we need to set up the bounding box of the data too, so that the scene graph knows where this
// objects is, for both positioning the camera at start up, and most importantly for culling.
virtual bool computeBound() const
virtual osg::BoundingBox computeBound() const
{
_bbox.init();
osg::BoundingBox bbox;
// follow is some truely horrible code required to calculate the
// bounding box of the teapot. Have used the original code above to do
@@ -265,13 +261,13 @@ class Teapot : public osg::Drawable
}
}
_bbox.expandBy(osg::Vec3(p[j][k][0],p[j][k][1],p[j][k][2]));
_bbox.expandBy(osg::Vec3(q[j][k][0],q[j][k][1],q[j][k][2]));
bbox.expandBy(osg::Vec3(p[j][k][0],p[j][k][1],p[j][k][2]));
bbox.expandBy(osg::Vec3(q[j][k][0],q[j][k][1],q[j][k][2]));
if (i < 6)
{
_bbox.expandBy(osg::Vec3(r[j][k][0],r[j][k][1],r[j][k][2]));
_bbox.expandBy(osg::Vec3(s[j][k][0],s[j][k][1],s[j][k][2]));
bbox.expandBy(osg::Vec3(r[j][k][0],r[j][k][1],r[j][k][2]));
bbox.expandBy(osg::Vec3(s[j][k][0],s[j][k][1],s[j][k][2]));
}
@@ -279,9 +275,13 @@ class Teapot : public osg::Drawable
}
}
_bbox_computed = true;
return true;
return bbox;
}
protected:
virtual ~Teapot() {}
};