protected override void Update()
    {
        base.Update();

        // If there is a target connected but current GameObject is not a Renderer,
        // we check target activation an then update movie material if active.
        if (renderMode == RenderMode.OnVisibility)
        {
            if (HaveRendererOwner == false && target != null && target.IsActive())
            {
                player.OnWillRenderObject(this);
            }
        }
    }