Thank you excessus,
I have tried it already, but don't work the same, don't I know what happen however, if don't work is the same, I will use hmp terrain, but I now have an other problem, I have deleted a model from my level, and now each time that the level starts appears me an error that don't find the model that I have deleted, I have rebuild the level but the same, what must I do? very strange thing appear to me I don`t know what appens here.

salva