7 Replies Latest reply: Dec 26, 2012 8:24 PM by Jim Wanamaker
KES007 Level 1 Level 1 (0 points)

Can you create depth of field in a single shot by blurring background and keeping object in foreground in focus?

  • 1. Re: depth of field
    BenB Level 5 Level 5 (7,825 points)
  • 2. Re: depth of field
    Jim Wanamaker Level 4 Level 4 (2,260 points)

    I think the simplist way is to duplicate your clip layer and then in the duplicated layer mask out the object you wish to keep in focus and then apply a blur filter to the original layer.

  • 3. Re: depth of field
    BenB Level 5 Level 5 (7,825 points)

    That's what I said.

  • 4. Re: depth of field
    KES007 Level 1 Level 1 (0 points)

    Great reply. Tx. 

     

    Any way to "bend" the mask lines so I can draw around a face for instance?

     

    Any way in Motion 5 to have the Mask move along with the face?

     

    I'm pretty sure you can't do this in just FCPX.

     

    Thanks for your help. 

  • 5. Re: depth of field
    BenB Level 5 Level 5 (7,825 points)

    Yes, the technique is the same and you can use a mask of any shape.  In fact, Slice X from  CoreMelt would help you out a lot if doing this inside FCP X.

     

    But inside Motion, you simply draw a circle and use that as your mask.  Here's what you'd do.  This is very rough and overly simplistic, but you'll get the idea.

     

    In Motion, make your two layers of the same video.  Blur the bottom.  In the top layer draw a custom shape around your subject.  Turn off fill, turn on outline, keyframe it to follow your talent.  That simply draws the shape and keyframes it.

     

    Now, turn off the visibility of that shape layer.  Right-click the top video layer, select Add Image Mask.  Then in the Inspector for the Image Mask layer, drag your keyframed shape into the Mask Source well in the inspector.

  • 6. Re: depth of field
    KES007 Level 1 Level 1 (0 points)

    Thanks BenB.  Can I get the Mask to "track" say ... a subjects "eyes" as they move, so the unblurred shape will move with the head? 

  • 7. Re: depth of field
    Jim Wanamaker Level 4 Level 4 (2,260 points)

    Yes you did. Sorry, I didn't see your reply until I posted.