unity获取丢失shader的material

UnityEngine.Object _obj = AssetDatabase.LoadAssetAtPath(_materialPath + @"\" + _materialFiles[j].Name, typeof(UnityEngine.Object)) as UnityEngine.Object;

if (_obj == null)

{

DebugX.Log(_materialFiles[j].Name + " is null.");

continue;

}

Material _mat = (Material)_obj;

_mat.shader = Shader.Find("Toon/Diffuse");

Texture _textureMain = AssetDatabase.LoadAssetAtPath(_assetsPath + @"\" + _dirName + ".tga", typeof(Texture)) as Texture;

if (null != _textureMain)

{

_mat.mainTexture = _textureMain;

}

else

{

DebugX.LogError(_dirName + " Texture is null.");

}