//-------------------------------------------------
        private void ShowButtonHint(params SteamVR_Action_In[] actions)
        {
            renderModel.gameObject.SetActive(true);

            renderModel.GetComponentsInChildren <MeshRenderer>(renderers);
            for (var i = 0; i < renderers.Count; i++)
            {
                var mainTexture = renderers[i].material.mainTexture;
                renderers[i].sharedMaterial       = controllerMaterial;
                renderers[i].material.mainTexture = mainTexture;

                // This is to poke unity into setting the correct render queue for the model
                renderers[i].material.renderQueue = controllerMaterial.shader.renderQueue;
            }

            for (var i = 0; i < actions.Length; i++)
            {
                if (actionHintInfos.ContainsKey(actions[i]))
                {
                    var hintInfo = actionHintInfos[actions[i]];
                    foreach (var renderer in hintInfo.renderers)
                    {
                        if (!flashingRenderers.Contains(renderer))
                        {
                            flashingRenderers.Add(renderer);
                        }
                    }
                }
            }

            startTime = Time.realtimeSinceStartup;
            tickCount = 0.0f;
        }
    public void Show(params Valve.VR.EVRButtonId[] buttons)
    {
        Clear();

        renderModel.gameObject.SetActive(true);

        renderModel.GetComponentsInChildren <MeshRenderer>(renderers);
        for (int i = 0; i < renderers.Count; i++)
        {
            Texture mainTexture = renderers[i].material.mainTexture;
            renderers[i].sharedMaterial       = controllerMaterial;
            renderers[i].material.mainTexture = mainTexture;

            // This is to poke unity into setting the correct render queue for the model
            renderers[i].material.renderQueue = controllerMaterial.shader.renderQueue;
        }

        for (int i = 0; i < buttons.Length; i++)
        {
            switch (buttons[i])
            {
            case Valve.VR.EVRButtonId.k_EButton_SteamVR_Trigger:
                FlashRenderers("trigger");
                break;

            case Valve.VR.EVRButtonId.k_EButton_ApplicationMenu:
                FlashRenderers("button");
                break;

            case Valve.VR.EVRButtonId.k_EButton_System:
                FlashRenderers("sys_button");
                break;

            case Valve.VR.EVRButtonId.k_EButton_Grip:
                FlashRenderers("lgrip");
                FlashRenderers("rgrip");
                break;

            case Valve.VR.EVRButtonId.k_EButton_SteamVR_Touchpad:
                FlashRenderers("trackpad");
                break;
            }
        }

        startTime = Time.realtimeSinceStartup;
        tickCount = 0.0f;
    }