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Depth of Field with Alpha Channel in AE
I rendered an animation last night in C4D as a RPF with both an alpha channel and the DOF effect. When I imported the animation into AE, the only part of the animation I could see was the section that was in the focal region, everything else was black. I went to the footage properties in AE and changed the apha channel from none to straight. Once I did that I could see everything, but everything had very jaggy edges. I have never had this problem before, but this is the first time that I have used the DOF effect. Am I missing something? Thank you for any help you could provide.
Kevin Snyder
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1 Reply
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There is no point in rendering with the depth of field effect on in C4D. Because that’s what you are trying to simulate in AE using the RPF file. You can set up the camera clipping planes in C4D so the depth knows what area to work in, But doing this process is so you can add the DOF in AE instead of in C4D.
The DOF has nothing to do with the the alpha channel. The alpha is for transparency only. If you rendered out of C4D with a straight alpha then set it the same in AE. Same goes with pre-multiplied. If they are set wrong you will get ugly oddities.
The RPF carries other info channels that has the depth info. In AE you select the DOF effect from the 3D menu.
Chris Smith
https://www.sugarfilmproduction.com
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