I was getting pretty frustrated with this one. First off Maya wasn't rendering all 3 layers even though everything was correct. I started back at the beginning and then it started to render all 3 layers. I rendered them but realised the smooth hadn't been applied. So I smoothed it and rendered again. Maya again decided not to render all 3 layers even though nothing had changed except it had been smoothed. I started again, Maya crashed. I started again yay it's rendering all 3 layers smoothed. Zdepth layer wont open in photoshop. Why not it's a tiff like the 2 other layers and they bloody open grrrrrr.
So this picure is without Zdepth because maya wont render that layer into a file that photoshop can read no matter what format I choose.