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Problems withAlpha Channels from Cinema 4d to After Effects
*I recently repost this thread but under the Cinema 4D section since I wasn’t sure if this was an Ae problem more than it was a Cinema 4D issue*
I’m currently having issues trying to remove the black background from my composition and put it on an Ae composition. I already tried many combinations of rendering with almost no luck, but here’s the main one;
Quicktime Movie – PNG and Animation – Millions of Colors+
Alpha Channel – CheckedStraight Alpha – Checked and Unchecked
Once the file has been rendered and play it on quicktime it looks like this which what I’m looking for
But when I open the file on Ae, it comes out like this
I’m aware there are ways to remove the background on Ae effects but I can’t, the rendered file has black smoke.
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5 Replies
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Are those two screenshots showing the same frame? Can you render a PNG sequence and share a frame with us?
Walter Soyka
Designer & Mad Scientist at Keen Live [link]
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
@keenlive | RenderBreak [blog] | Profile [LinkedIn] -
Hello Carlos,
the best way to export cinema 4D video to after effects is to render your Cinema 4D animation as a PNG. Make sure to render all the frames. This way you’ll have a folder with alot of PNG files. (the many frames your animation has). Now you can create a png sequence in Adobe Premiere and export that as an Alpha quicktime video file. Hope this will help you out! If you dont get it or got any questions. In my latest video on Youtube I’m also exporting my project as with an alpha channel. Search ‘Detline’ on youtube and you’ll find it 😉
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No, they’re different frames within the same video.
Here’s more screenshots that I took.Here’s the intended graphic
Here’s how it looks rendered as QT/ANIMATION/ALPHA CHANNEL/ALPHASTRAIGHT
Here’s how it looks on Ae
About the PNG sequence, do you want the render from C4D or from Ae?
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Hey nice!
However, it didn’t work :/. I got the same result.
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Are you doing any kind of post-effects in C4D? What do you see if you render a floating-point EXR?
Walter Soyka
Designer & Mad Scientist at Keen Live [link]
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
@keenlive | RenderBreak [blog] | Profile [LinkedIn]
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