Hi everyone 
A few days ago I was so confuse about using passes by BPR in Photoshop. So here’s my work with passes I rendered in Zbrush for everyone who doesn’t know what to do with them. With ones who knew already, I’d love to hear you share your way to deal with it. I used Photoshop CS6, but if you use a lower version it’s just fine so let’s get started
First, I opened the shade pass in Photoshop
then I opened the depth and shadow
and set their bleding mode to multiply
afterthat I brought in the light passes (include keylight, fill light and rim light. I learn this from this tutorial http://www.youtube.com/watch?v=NEbr3MX4dJU)
and set their blending mode to screen
then I imported mask pass into it and here’s what I got
but I didn’t like the grey in the neck (caused by the depth pass) so I brought a hue/saturation layer above it to make it more colorful and erase it a little bit
then I decided that I like the background with gradient. but the mask has covered all of the shade’s background so I imported a new one with a free background and named it origin bg(I didn’t use shade background because it didn’t have the shadow in the floor, or maybe I forgot to turn it on when I rendered :-?)
afterthat with the quick selection tool (hotkey W) I quickly selected the mask’s background area. then I went to my origin bg layer and hit Ctrl - J to create a new layer content only the background of my origin bg. but maybe the background couldn’t cover all over the black background of the mask so I went to select/ modify/ and chose expand and set it to 1px. so I could get a more expanding background to guarantee that my pose would be smoother in the border between background and the model
the final result’s just exactly what I want
so, I hope you enjoy it. and if enyone have any better idea please share yours with us
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