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“Intelligent” Rendering – Telling FCP to render only nec’y mat’l?
I’ve noticed that FCP will render even layers that aren’t necessary – for example, if I have a greenscreen video on V2 on top of a background on V1, and I put an entirely new video on V3, it renders V2 & V1 (taking a long long time), even though they are not seen.
I believe Avid knows it doesn’t need to render V2 & V1. Is there a way to tell FCP not to render what is not seen or not nec’y to render.
My poor man’s solution is to delete unseen footage for a faster render, but looking for a more elegant/quicker solution.
Thx!
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6 Replies
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You can select a clip(s) in the timeline and hit, I think, control+b to turn the clips ‘off’. They’ll still be in the timeline but FCP won’t see them.
-Andrew
3.2GHz 8-core, FCP 6.0.4, 10.5.5
Blackmagic Multibridge Eclipse (6.8.1) -
Nice! Good tip.
It would be great if FCP knew what to process, but that’s a good workaround.
Thx
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Hi Jeff,
To my knowledge FCP onto renders the visible layers. Are you sure you don’t have something amiss on your top layer’s settings? Maybe opacity set to 99%, or not completely centred etc that would allow some of the V1 & V2 comp to be visible.
Alex Elkins
Salad Daze Films – Freshly Tossed
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No, I’m sure there’s nothing amiss. I did an A/B test with the footage there underneath and with it deleted, and it took about 5x as long to render the same passage with the footage on V1 & V2 there.
Thx, Alex.
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In the Sequence Menu > Render All you can set what renders. You probably have Full checked. That means every time you start a render, fully rendered clips will be re-rendered. If you uncheck that, they won’t render. Be aware that some transitions may be wonky if they are not re-rendered full. You may see a “jump” just before and after the transition. Then you can select those wonky transitions in the timeline and go to the Sequence menu > Render Selection and only have Full checked. Then, just the selected transitions will render Full. Hope this helps.
John
MacPro 8-core 2.8GHz 8 GB RAM OS 10.5.8 QT7.6.4 Kona 3 Dual Cinema 23 ATI Radeon HD 3870, 24″ TV-Logic Monitor, ATTO ExpressSAS R380 RAID Adapter, PDE enclosure with 8-drive 6TB RAID 5
FCS 3 (FCP 7.0.1, Motion 4.0.1, Comp 3.5.1, DVDSP 4.2.2, Color 1.5.1)Pro Tools HD w SYNC IO & 192 Digital I/O, Yamaha DM1000, Millennia Media HV-3C, Neumann U87, Schoeps Mk41 mics, Genelec Monitors, PrimaLT ISDN
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OK thx –
Still though, seems odd that deleting the footage makes the render a lot faster than leaving it in.
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