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Red’s Motion Key Effect Creating *Two* Masks?
I am having an issue with Red’s Motion Key effect where it seems to be using two masks to replace the moving image. This is causing an offset type of distortion.
I followed this Motion Key tutorial: https://www.youtube.com/watch?v=hJCH8mZeazc&feature=relmfu
B/c I don’t have the Artbeats source footage, I used some NTSC 720 X 480 footage that I have.
When I play the effect w/ Remove Area chosen, there is a distortion that seems to be cause by partially overlapping masks.
I remember seeing this behavior before when using the Motion Key, but didn’t have the time track down the cause. I see this both when using Red as a standalone app or when launched for Avid’s Media Composer.
The project is set to 720 X 480 NTSC DV. Fields is set to Lower Field. I’m using Windows 7 64-bit and Red version AvidFX 6.0.5.1097.
The attached images should illustrate what I’m seeing.
What the effect looks like:
What the Mask looks like:
What the Setup
Region looks like:General settings for the effect:
Thank you very much for the help!
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2 Replies
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Hi Peter,
We would very much like to work with you to resolve this – would be be possible for us to use the clip that you are using in the images that you posted? If so, please drop me a note at peterm@borisfx.com and we’ll give it a shot. Assuming that it will work for us, we can then send you the .red project file so that you can see how we did it.
Cheers,
Peter.
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Hi Peter,
The problem with this is that you need to feed the motion key filter a stabilized clip – there’s just way too much camera shake in the original shot for the Motion Key to generate a good result. Here’s the workflow:
• import the clip into RED
• use the optical stabilizer to stabilize the media
• render out a new stabilized clip
• import the stabilized clip into RED
• use the motion key filter to remove the personI’ve sent along a RED project (privately) so that you can see how it’s done.
Cheers,
Peter.
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