public void DrawDebug(Body body, CollisionSkin collision)
        {
            if (!body.CollisionSkin.GetType().Equals(typeof(JigLibX.Geometry.Plane)))
            {
                wf = collision.GetLocalSkinWireframe();

                // if the collision skin was also added to the body
                // we have to transform the skin wireframe to the body space
                if (body.CollisionSkin != null)
                {
                    body.TransformWireframe(wf);
                }

                DrawShape(wf);
            }
        }