private static boolean pickingInFrustum( Selectable selectable, float[][] frustum, float z_offset, float selection_radius, float selection_height) { picking_selection_box.setBounds( -selection_radius + selectable.getPositionX(), selection_radius + selectable.getPositionX(), -selection_radius + selectable.getPositionY(), selection_radius + selectable.getPositionY(), z_offset, z_offset + selection_height); return RenderTools.inFrustum(picking_selection_box, frustum) >= RenderTools.IN_FRUSTUM; }