Mac Pro Refusing to Render

[Gabriele De simone]

I’m guessing that you’re getting an error because you’re trying to render the sequence at one of the high-precision settings, but your graphics card does not have sufficient video memory to do that. If my guess is correct, try the following:

– Open your Sequence Settings window
– Switch to the Video Processing tab
– Select the “Render in 8-bit YUV” option
– Re-render the sequence

HTH,
Gabe
Noise Industries, LLC
https://www.noiseindustries.com

[Justin Coleman]

Yer thats done it, you are a genius!

Thanks.

Whilst doing that, I noticed that there was another Apple ProRes setting labelled HQ, how does that differ from the non HQ one?

Thanks again.

Justin

[Gabriele De simone]

The ProRes codec uses VBR (variable bit rate) encoding, and as far as I know the HQ vs standard ProRes sequence settings simply tell FCP how much “bandwidth” your output should use.

You can get this info by choosing the “HD and Broadcast Formats” command under the FCP Help menu. If you scroll down to the section titled “About the Apple ProRes 422 Codec”, you’ll get the exact bit rates used by the HQ and standard settings.

Lower bit-rate obviously means lower quality, but also lower requirements on your I/O (especially when editing/transferring over a network). I don’t think anyone has tested how much slower the HQ settings are though, it would be interesting to have that data…

Gabe
Noise Industries, LLC
https://www.noiseindustries.com

[Paul Escandon]

ProRes 422 (non HQ) has a target bit rate of 145 Mbps, while ProRes 422 HQ has a target bit rate of 220Mbps. Depending on the type of material you’re working with, though, a lot of people state they can’t see a difference between the two. It’s worth checking out for yourself so you can see if you can save a little space.

* * *
Paul Escandon – Lead Editor @ Outdoor Channel
Producer | Director – Oremus Productions
http://www.oremusproductions.com
Apple Certified Trainer – Final Cut Pro
– –
Adjunct Professor of Media
John Paul the Great Catholic University

[Andrew Hamilton]

This rendered for me, however, I got a really really bad looking jittery effect with the plugins that were refusing to render prior to the change to 8 bit yuv. Anyone have any ideas on how to remedy that or am I just screwed from using those on my system?

Andrew Hamilton
DVD Developer
Ultimate Fighting Championship
http://www.ufc.com

Las Vegas Video Production
Hamilton International Productions
https://www.hiproductions.com