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export object in alpha in cinema 4d to AE
hi, i am quite now to cinema 4d. I know that this question has done so many times, however i have seen so many videos and tutorials, and once I try to export my object, the result is not the same. My idea is to get the object in 3d in alpha channel. I mean the element isolated from background or something similar. the meaning is to use them in AE and adding backrgound, effect and more stuff.
I hope someone can really help me with this issue.
Many thanks.
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6 Replies
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You do this by assigning your object a compositing tag, specifying a buffer channel in the tag, and adding the object buffer in render>multipass options. If you install the AE plugin that comes with Cinema in your AE plugins and save a compositing project file (render>save), you can import the resulting .aec file into AE and it will bring in the main render and multipass renders.
Then you use the buffer pass as a track matte to isolate your object.
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Many thanks.
however if you are exporting as well specular or global ilumination and stuff like that do not get messy?
cheers
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It doesn’t make it particularly messy. If you’re comping a bunch of different passes you would probably want to precompose them and then use the matte on the precomp.
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I have done what you said, and you were totally right. Thanks a lot. I have used basically the precomp in RGB exported in png, this one makes the element without the BG, however I am not really sure what the other pass do, for example global ilumination. Every single pass I have created should improve or modify my comps?
and one thing else using this topic…do you know any way to see every single keyframe I have done in the timeline? for now i can only see the camera, and the rest of the elements animated in order to see them I need to select them one by one to see them in the timeline.
Many thanks!
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Generally speaking separate passes just give you an opportunity to tweak your animation in post production without having to rerender the whole thing. Which passes you render depends on what you want to do and on the nature of your scene. For example, if you didn’t enable global illumination for your render, it wouldn’t make sense to render a GI pass.
I’d recommend that you register at cineversity.com (free to register) and check out the four-part WMXN Broadcast Bumper tutorial here: https://www.cineversity.com/tutorials/index.asp?cid=2
It gives a good overview of C4D/AE integration.
Regarding the timeline, you should go into the the Timeline’s view menu and make sure “automatic mode” is active, then make sure View>Show>Show Animated is active.
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wow thanks a lot, this was really helpful…
creative cow rules!
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