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Unlimited RT Issues
I’m suddenly having problems with Unlimited RT rendering in Final Cut. Up until yesterday, anything showing up in the timeline as unlimited played back normally, just at a slightly lower quality as per the RT settings. Now, however, it looks like the quality is normal, but the playhead skips through the timeline and the audio meters jump around rather than both moving smoothly. There’s also a lot of lag starting playback, moving through frame by frame, and scrubbing through the timeline. The RT settings are still set to full frame rate and dynamic quality (in fact, even when I change the quality, it still tries to play back at full quality), and no other FCP or computer settings have been changed as far as I’m aware. Any ideas as to why it would suddenly start behaving this way?
Here’s all the various specs:
Timeline: Prores 422 720p30
Footage: Prores 422 720p60 and H264 1080p30FCP 7.0.3
Mac OS X 10.5.8, 2×2.8 GHz Quad-core Intel Xeon, 4GB 800MHz DDR2 FB-DIMM
Let me know if there’s any other info you need, thanks.
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4 Replies
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[Chris Mercury] “and H264 1080p30
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That is one of the reasons, this is not an editing codec, you need to convert it to mach the other footage.Then if you still have a problem, test the speed of the drives. AJA has a disk testing app, not sure if anyone can download it, check at their website.
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Yeah, I’ve read that it’s not advisable to edit in H264, but since it seemed to be working fine, I didn’t want to take the extra step to convert the footage. It appears as though final cut has now decided it will no longer reward my laziness, and the time I spend waiting for renders/researching the issue has proven to be much longer than the time it takes to convert. Luckily, most of my work is short projects, so I’ve already corrected myself on the next one. Thanks for the quick response!
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[Chris Mercury] “‘ve read that it’s not advisable to edit in H264, but since it seemed to be working fine, I didn’t want to take the extra step to convert the footage.”
Unfortunately, Apple has not made FCP completely balk at h.264 files, but don’t let that sway you. At this point in it’s development FCP is unable to edit h.264 and you need to move on from your present mindset ASAP. Create a droplet in Compressor that transcodes to ProRes and make certain it also converts audio to 48khz if your camera records at a different sample rate.
David Roth Weiss
Director/Editor/Colorist
David Weiss Productions, Inc.
Los Angeles
https://www.drwfilms.comPOST-PRODUCTION WITHOUT THE USUAL INSANITY ™
A forum host of Creative COW’s Business & Marketing and Apple Final Cut Pro forums. Formerly host of the Apple Final Cut Basics, Indie Film & Documentary, and Film History & Appreciations forums.
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Sounds good. I’m now going to spend the rest of my work day writing “I will not edit in H264” repeatedly on the white board. Good call on the droplet, too. I’ve made sure my coworker and I both have one on our desktops.
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