-
Problem with RPF image sequence
I have exported an RPF image sequence of three colored spheres into AE. When I apply a Depth of Field using the depth info from the RPF sequence I get some strange outlines on my spheres.
https://i7.photobucket.com/albums/y255/jubjub64/DoFProblem.jpg
You can kind of see it around the blue sphere in this pic but it is really obvious when the spheres overlap…
https://i7.photobucket.com/albums/y255/jubjub64/DoFProblem2.jpg
I kind of think that my 3D program is not doing any anti-aliasing on my z-depth layer. Does anyone know how I can fix this in After Effects? I cannot find how to fix this in my 3D program. -
1 Reply
-
I would add that 32bpc would be the absolute best way to render out of your 3D app and work in AE for these purposes (if you have the patience). Otherwise, use 16bpc as Dan recommends.
One issue you will experience with DOF effects is that they are essentially glorified blurs. They can’t blur the yellow ball behind the blue ball because there is no data for the yellow ball behind the blue ball (the 3D doesn’t render non-visible faces).
You could also extract the depth information from your RPF sequence and use it to control a Lens Blur effect. If you want to soften the edges of the objects (avoid the aliasing) you could try applying a very subtle Box Blur after you extract the depth information (do this too much and the DOF may start looking wrong). Lens Blur will take longer to render.
Also, Lenscare is one of the better DOF effect plug-ins for AE. It still has the same shortcoming, but it seems to do a much better job of being convincing aside from that.
https://www.frischluft.com/lenscare/lenscare.php
Darby Edelen
Designer
Left Coast Digital
Santa Cruz, CA
Reply to this Discussion! Login or Sign Up