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Ability to drive lens blur with a depth mask.

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Hi guys, 

I know a lot of people in the 3D community (myself included) would love to see the ability to drive a lens blur filter with a depth mask. This is a feature keeping many of us on Photoshop when we could be using other packages.

This is a very common thing done in compositing and would be very useful. Basically how it works is you have a greyscale image (usually 32 bit) that is output by a 3D software package. This can then be loaded into Photoshop (or some other compositor like Nuke, After Effects, Fusion, etc) and you can use it to drive the lens blur filters. 

This is especially useful since you can change where the blur falls and what is in focus and what isn't. 

Here is a video of what I mean. The good stuff starts around the 3:20 mark: http://www.warnermcgee.com/modo/depth_output.mov 



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