• Apple Final Cut Pro Legacy

  Chroma Key filter – render issue

  Posted by Michael Rothenberg on September 22, 2009 at 4:49 pm

  FCP 6 question –

  I’m working in a 1080i ProRes HQ project and trying to do some chroma keying. Aside from issues with the key itself, a strange problem has cropped up where after rendering I get lots of pale horizontal lines which I would describe as “striations”. They are most evident in the keyed areas, but not confined to those areas.

  These lines only pop up when I render. I am not seeing them with other filters or effects. I have tried tossing the renders and re-rendering, putting the timeline in a new sequence, and trashing prefs.

  When I change my render prefs to “Render in 8 bit” the problem goes away, but the results are not good either. Is there some reason that the FCP’s Chroma Key filter can not render in high-precision YUV?

  Thanks in advance!

  Michael Rothenberg
  Peak Productions

  Michael Rothenberg replied 16 years, 7 months ago 1 Member · 0 Replies
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