How can I create a 64-bit image in Photoshop CS6?

Question

Hi, experts. Recently, I was investigating blending modes, and came across one called Behind. When I looked on an Adobe webpage about blending modes, I found that Behind is not available for 32-bit images. I am running Photoshop CS6 Extended, and I understand that it is a 64-bit-capable app. So, please tell me, if this is possible, how a 64-bit image file can be created in this app. (Or otherwise, how Behind may be used — if this is at all possible — in a 16 or 32-bit image.)

Thanks in advance, for any helpful information.

T.T.F.

Conrad_C · Accepted Answer

I created an image, filling it with blue. On top of that, I placed an empty layer. In that empty layer, I scribed a circle, and filled it with red. Then, in the transparent layer with the red circle in it, I typed some words in green, thinking that it would be possible to opt for Behind mode with the text. However, Behind was not in the list of blending modes. Perhaps there was something that was not being done aright, but, if there was, I don't know what it was.

T.T.F.

The reason you're almost never seeing Behind is that it's only available for brush tools. It controls how pixels apply as you paint. It only appears in the options bar when you have a painting tool selected, and for that reason I don't think it ever appears in the Layers panel. Same for the Clear blending mode.

To use the Behind blending mode, first select a pixel layer in the Layers panel that isn't the background layer and has transparent areas. Then select a painting tool like Brush or Clone Stamp.

Details about that blending mode are on this page:

Blending modes in Adobe Photoshop