public virtual void DebugDraw()
{
MyTransform gridTransform = new MyTransform(m_blockA.Block.CubeGrid.WorldMatrix);
var worldCenterA = MyTransform.Transform(ref m_blockA.Transform.Position, ref gridTransform);
var worldCenterB = MyTransform.Transform(ref m_blockB.Transform.Position, ref gridTransform);
VRageRender.MyRenderProxy.DebugDrawLine3D(worldCenterA, worldCenterB, m_debugLineColor, m_debugLineColor, false);
}