-
How do I create depth of field?
Hi everyone. I am busy compositing a 3D animation. I have a grayscale Z-depth pass (white is closest to camera, black is furthest – see attached image), and I need to use that to create depth of field in FCPX. What is the best method for this? I have tried using a gaussian blur on a duplicated image, and then adding an image mask as a luminance channel. It kind of works, but I have little control over the image mask and therefore the depth of field. See the result below. If anyone could help it would be greatly appreciated. Thanks.
-
5 Replies
-
Why in FCPX?
I can see this in After Effects with your render passes. -
Unfortunately I don’t have access to After Effects right now… just FCPX and Motion.
-
Boris Continuum has a depth of field plug-in that will use the depth map but outside of that, there’s nothing I can think of that’s going to do the job in FCPX. I’m impressed you can even get it to sort-of work.
Maybe try the Motion forum and see if anyone there has a suggestion.
—-
Jeff Kirkland | Video Producer & Cinematographer
Hobart, Tasmania | Twitter: @jeffkirkland -
[Marc Echstein] ” I have a grayscale Z-depth pass (white is closest to camera, black is furthest – see attached image), and I need to use that to create depth of field in FCPX. What is the best method for this?”
Last week I just released a product for tilt-shift and simulating DOF for people who DON’T have a depth map (https://fxfactory.com/info/focuspoint/ – product page and youtube links at the end of this post)
and so I happen to have all the tools right in front of me and so just now after reading this thread I started a module for using a depth map to do DOF – see this short screencap video with voiceover showing what I have so far
[kingluma.com/zmap_focus.mp4]
what other kind of controls would you like to see in such an effect ?demo
https://www.youtube.com/watch?v=sdk-f1rJLpo
tutorial
https://www.youtube.com/watch?v=5iL3X0Cs9Some contents or functionalities here are not available due to your cookie preferences!This happens because the functionality/content marked as “Google Youtube” uses cookies that you choosed to keep disabled. In order to view this content or use this functionality, please enable cookies: click here to open your cookie preferences.
-
[Jeff Kirkland] “Maybe try the Motion forum and see if anyone there has a suggestion.”
FWIW I don’t think (and I have looked for it in the past) that any of the Blurs that come standard with Motion offer an input for an image as blur map. It’s possible to use an image to mask between a blurred layer and an unblurred layer – but to me that’s always been kind of a half-assed way to do Tilt-Shift or fake DOF that doesn’t work as well as true variable blur
Reply to this Discussion! Login or Sign Up