pixi combine texture

 prepareAnimationStrip(frames) {
    let renderer = this.app.renderer;
    const rect = new PIXI.Rectangle(
      0,
      0,
      this.tilewidth * frames.length,
      this.tileheight
    );

    var container = new PIXI.Container();
    console.log(container);

    frames.forEach((frame, frameIndex) => {
      const frameTexture = this.prepareTexture(frame.tileid);
      console.log(frameTexture);
      frameTexture.frame = rect;
      if (frameIndex > 0) frameTexture.x = (frameIndex + 1) * this.tilewidth;
      var sprite = new PIXI.Sprite(frameTexture);
      ////////
      container.addChild(sprite);
    });
    var tex = renderer.generateTexture(container, {
      width: this.tilewidth * frames.length,
      height: this.tileheight,
      autoResize: true,
    });
    const texture = new PIXI.Texture(tex);
    texture.cacheAsBitmap = true;
    console.log('COMP:', texture, tex);
    return tex;
  }