Unity 获取物体所有的材质，并且改变这些材质的Shader

    #region 

    private Renderer[] rendArray;
    private List materials = new List();

    /// 

    /// 获取物体上所有的材质，并改变这些材质的Shader
    /// 
    private void GetModelAllMaterialsAndChange(GameObject gameObject, Shader targetShader)
    {
        materials.Clear();
        rendArray = gameObject.transform.GetComponentsInChildren(true);
        for (int i = 0; i < rendArray.Length; i++)
        {
            Material[] mats = rendArray[i].materials;
            for (int j = 0; j < mats.Length; j++)
            {
                materials.Add(mats[j]);
            }
        }

        for (int i = 0; i < materials.Count; i++)
        {
            materials[i].shader = targetShader;
        }
    }

    #endregion