Currently Being ModeratedFeb 3, 2013 10:14 AM (in response to LukesQueriesOnMacAndiOS)
iMovie is designed so you can stand in front of a green wall or a green bedsheet and use that in green screen.
Your sample looks like you used a solid green color from a computer graphics package.
When iMovie sees a perfect green like that, it does not recognize it as green screen.
My suggestion would be to alter your green background by applying a gradient between two similar shades of green.
Currently Being ModeratedFeb 4, 2013 2:34 AM (in response to LukesQueriesOnMacAndiOS)
… see just a few reen dots, not the green screen footage.
the material you're linking to is in a .flv container (and downloading it violates the ToU of YouTube, just to mention that )
after re-wrapping it into a suitable format, works like charme:
… aside missing drop shadows, wrong perspective, missing highlights,
and somehow the dino is a lil' bit 'opaque'
how or into what did you convert the t-rex.flv?
Currently Being ModeratedFeb 5, 2013 10:48 PM (in response to LukesQueriesOnMacAndiOS)
I used keepvid.com to convert it to MP4.
mp4 is no codec, but a container/wrapper.
could contain a codec, which doesn't support this effect in iMovie.
if optional in your converter software, convert to AppleIntermediateCodec.
or, due to the SDef original, into .DV