Test whether the given line segment, defined by the end points <code>a</code> and <code>b</code>,
is partly or completely within the frustum defined by <code>this</code> frustum culler.
@param a
the line segment's first end point
@param b
the line segment's second end point
@return <code>true</code> if the given line segment is partly or completely inside the frustum;
<code>false</code> otherwise
Test whether the given line segment, defined by the end points <code>a</code> and <code>b</code>, is partly or completely within the frustum defined by <code>this</code> frustum culler.
@param a the line segment's first end point @param b the line segment's second end point @return <code>true</code> if the given line segment is partly or completely inside the frustum; <code>false</code> otherwise