Hi there,
I'm trying use some cylinders as masks, so I don't have to rotoscope all these trees in AE.
The idea is that they are invisible to the camera, but they actually cover the small spheres floating in the air. I've tried with ObjectTag with no success.
https://imgur.com/YEttieF
https://imgur.com/DHnInm2
Thanks!
How to make an object invisible but cover other objects
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Important notice: All artwork submitted on our public gallery forums gallery forums may or may not be used by OTOY for publication on our website gallery.
If you do not want us to publish your art, please mention it in your post clearly. (put a very red small diagonal cross in the left right corner of the image)
Any images already published on the gallery will be removed if the original author asks us to do so.
We recommend placing your credits on the images so you benefit from the exposure too, and use a minimum image width of 1200 pixels, and use pathtracing or PMC. Thanks for your attention, The OctaneRender Team.
For new users: this forum is moderated. Your first post will appear only after it has been reviewed by a moderator, so it will not show up immediately.
This is necessary to avoid this forum being flooded by spam.
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How to make an object invisible but cover other objects
by xNaXx » Wed Sep 04, 2019 2:26 pm
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Re: How to make an object invisible but cover other objects
by WoutTgh » Fri Oct 04, 2019 5:02 pm
Maybe the "matte" option is what you're looking for ? It's under the diffuse material shader 
- WoutTgh
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