Jump to content

Recommended Posts


Upon learning Cycles 4D and other renders, I never truly understood how to setup, render, and use a Z-Depth. I know it has to do with depth of field, but I don't completely understand how it works, and how to use it in compositing, such as After Effects. That being said, I rendered 2 images. The main frame, and a Z-Depth Pass. According to the Cycles 4D manual I set it up right, so my question is, how do I then use it? How can I control the Depth of Field in post, if my main footage has Depth of Field already added, or is it more like, a Z-Depth pass is for footage without DOP. If that's the case, how do I render a Z-Pass, if the DOP settings in the camera tag isn't added?


I apologize for the questions, I just want to figure this out once and for all.







Share this post

Link to post

Z-Depth can be used for different kinds of effects that rely on the depth information. These include but are not limited to DoF (what you already know) and fog effects for example.


When you want to add your DoF in Post with Z-Depth you DO NOT use DoF in your final renders. The entire point with Post DoF is that you don't have to invest the additional rendertime to do it properly in the render. It does have it's limitations and does not look as good as "real" DoF, but in many scenes it works just fine.


EDIT: You import the Z-Depth into After Effects and apply the Camera Blur effect on your main footage. Then you use the Z-Depth as "Mask".

Share this post

Link to post
  • Topic Author
  • Author of the topic Posted

    I've been playing around with it, thank you for taking the time to explain it!

    Share this post

    Link to post

    Join the conversation

    You can post now and register later. If you have an account, sign in now to post with your account.

    Reply to this topic...

    ×   Pasted as rich text.   Paste as plain text instead

      Only 75 emoji are allowed.

    ×   Your link has been automatically embedded.   Display as a link instead

    ×   Your previous content has been restored.   Clear editor

    ×   You cannot paste images directly. Upload or insert images from URL.

    Sign in to follow this  

    • Create New...


    We are in the progress of finalising upgrade to Cafe 3.0. If you are experiencing issues, please change the default theme to Cafe 2.5 and thing’s should work again. We will notify everyone when we resolve all the issues.

    It would be also great if you could report any issue you might have on your side so we can fix them. :cowboypistol: