Nobody can tell you anything without seeing it and your exact key settings. Of course compressed and chroma-undersampled footage is not ideal for keying, bit it's not impossible to pull a good key, either.
Ill get some samples ready. Thank you.
There are excellent tools to deal with edges in Keyed footage. since CC 13.0 there is the Key Cleaner: favorite features in CC versions of After Effects: Key Cleaner and Advanced Spill Suppressor effects | Creative Cloud bl… there are also other ways to deal with that and that requires experience, knowledge and creativity. if you are a Lynda Subscriber (you can try 10 days for free - btw I don't work there or get money from them but maybe I should!) I would recommend this excellent comprehensive course by one of Ae's top Gurus in the VFX department - Mark Christiansen-
if you are not, there are definitely some other great tutorials out there. here's a good resource for tutorials for low budget film making:
Excellent help. Thanks
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Roei Tzoref schrieb -
Roei Tzoref created the discussion
"How to fix wobbly edge in green screen keying"
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Glad to help, good luck.