/// <summary>
    /// コルーチンでファイル読み込み
    /// </summary>
    /// <param name="file"></param>
    /// <returns></returns>
    IEnumerator LoadVR180Coroutine(string file)
    {
        FindObjectOfType <VR180Mesh>().GenerateMesh(file);
        FindObjectOfType <VR180Mesh>().StartPlay(file);

        // 前のtextureを破棄
        Destroy(texture);

        // Quiltを読み込み
        quilt.tiling = new Quilt.Tiling(
            "Custom " + 2 + "x" + 1,
            2, 1,
            2560, 1440
            );
        quilt.overrideQuilt = renderTexture;
        quilt.SetupQuilt();

        // 念のため毎回GCをしてみる…
        System.GC.Collect();

        Debug.Log("Estimaged tiling: " + quilt.tiling.presetName);     // 選択されたTiling

        // 読み込み完了
        isLoading = false;

        yield return(null);
    }
    /// <summary>
    /// コルーチンでファイル読み込み
    /// </summary>
    /// <param name="file"></param>
    /// <returns></returns>
    IEnumerator LoadQuiltFile(string file)
    {
        file = "file://" + file;
        Debug.Log(file);
        WWW www = new WWW(file);

        yield return(www);

        Debug.Log(www.error);
        Debug.Log(www.texture);

        texture             = www.texture;
        quilt.tiling        = GetTilingType(texture);
        quilt.overrideQuilt = texture;
        quilt.SetupQuilt();
        Debug.Log(quilt.tiling.presetName + " # " + quilt.TilingPresetIndex);     // 選択されたTiling
    }