public static Mesh GetRenderMesh() {
        if (preRenderMesh == null) {
            Polygon2D tilePoly = Polygon2D.CreateFromRect(new Vector2(1f, 1f));
            Mesh staticTileMesh = tilePoly.CreateMesh(new Vector2(2f, 2f), Vector2.zero);
            preRenderMesh = staticTileMesh;
        }
        return(preRenderMesh);
    }