thank you mates!i think the portion of the clouds is not very difficult but the picture of the city…how can i transform a normal 2d city’s picture into 3d?i just watched Mr.Kramers’s tutorial of 3d projection,but looks like it’s handy for a picture like a porch or a straightforward street not for a city,i cant simulate it properly,so you guys can you give me some further directions?thank you very much!