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RT to rendered segment – colour change. Why?
Hey folks.
This has annoyed me every since I started using FCP (back in 5.01 days) – why do I get a colour shift when I skip from a rendered chunk of a clip to a RT part?
Simply, if I have a 10 second clip on the timeline, and want to add a strobe (for example) between seconds 7 and 9 – I have to render the strobed section, which caused a colour shift (a drop in saturation mostly) between seconds 7 and 9, then back to the original colour afterwards.
It happens with any effect, if I go from just RT clip with colour correction on it into a section with an effect added, the colour shifts through that section.
This can be fixed by adding a broadcast safe effect to all clips (only reason is so that everything wants rendered, and to be honest, the B.S. effect is as good as any) – but as I’m working in uncompressed HD, the fact that this means I have no real-time effects, and have to render absolutely everything, is costing a LOT of time in the edit.
I wondered if it was a problem with rendering YUV instead of RGB (or the other way round) – but that’s not it.
Does anyone have any ideas? Like I said, I’ve always found this frustrating – and I hope that it’s just something I’ve not checked, and it’s not a bug – as if it IS a bug, I’ll probably end up headbutting the desk in disappointment.
Again…
John. (see below for my vital stats).
John Steventon
JKL Editing
http://www.jklediting.com
“Success is merely a failure to imagine more…”2.26 Dual Quad Nehalem Mac Pro / 2 x 23inch Apple Displays / FCP 6.05 / Decklink HD Extreme 3 + Multibridge / JVC HD Monitor / Atto Celerity Fibre Channel with Infortrend 6.5tb Raid 5 Storage / And a smile.
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