intersectsBoundingSphere method
Returns true if the given bounding sphere intersects this OBB.
Implementation
bool intersectsBoundingSphere(BoundingSphere sphere ) {
// find the point on the OBB closest to the sphere center
clampPoint( sphere.center, _closestPoint );
// if that point is inside the sphere, the OBB and sphere intersect
return _closestPoint.squaredDistanceTo( sphere.center ) <= ( sphere.radius * sphere.radius );
}