3D Piano & smashed glass.

I staerted off by getting an image of a piano and then opening then up in photoshop and duplicating the layer. I then named one layer blue and the other red. I then selected the blue layer and adjusted the curves to a red channel and made the input 251 and the output to zero.  I then, on the red layer, done the same process but adjusted the green channel. I then moved the blue layer to the left slightly. then i changed the blending options to screen on the blue layer. After all of this it gave the piano a 3D effect through 3D glasses.

I then did the same process to an image of smashed glass and ended up with this.