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jordi robert
Rendering issue
on Nov 21, 2012 at 1:44:23 pm

Hi Guys
I just started a new project and I shot (canon 7D DSLR), transcode (proress 422) and set up project as usual but this time every time I move a clip in the timeline i need to render. Any ideas why is this happening? Sequence settings attached






Thank you

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Brad Elliott
Re: Rendering issue
on Nov 21, 2012 at 3:17:57 pm

More than likely your sequence settings do not match your clips settings.

Unless the default FC preferences have been changed FC should ask you if you would like to change your sequence settings to match the clip settings.

The sequence settings frame grab is set to LT. The other grab makes me wonder if I'm not seeing the entire codec column. Are the clips are PR422 or PR422 LT or PR422?

Start with a empty sequence.
Add a clip
If you are prompted and click yes to change the seq settings you should see that your sequence and clips settings match and you shouldn't have to render. You could find that the clips are not what you thought.

In my experience the first time I log and transfer after adding a Canon plug-in the default setting in L&T is PR422 4444. I learned the hard way to check this before starting any processes.



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Rafael Amador
Re: Rendering issue
on Nov 21, 2012 at 3:40:01 pm

If I'm not wrong, the Canon only shoot Progressive, but your sequence is Interlaced.
rafael

http://www.nagavideo.com


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jordi robert
Re: Rendering issue
on Nov 21, 2012 at 5:20:27 pm

Brad: The clips are Proress 422 LT and so is the sequence
Rafael, you are right DSLR are progresive but when I started editing this project I added a clip to the timeline and when it asked me if I wanted to change the settings to fit the clips settings I said yes and it comes up with Upper (odd) I dont understand why. So just to check I changed to NONE (progresive) but still doing the same.

Lost!

Check out my Vimeo page http://vimeo.com/user9949700/videos


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Rafael Amador
Re: Rendering issue
on Nov 21, 2012 at 6:05:26 pm

[jordi robert] "when I started editing this project I added a clip to the timeline and when it asked me if I wanted to change the settings to fit the clips settings I said yes and it comes up with Upper (odd) I dont understand why. So just to check I changed to NONE (progresive) but still doing the same."
That;s because FC expect the 1080 footage to be Interlaced. Your footage is PSF.
You need to check the clips in FCs Browser as NONE. Then edit on a NONE sequence.
rafael

http://www.nagavideo.com


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jordi robert
Re: Rendering issue
on Nov 21, 2012 at 6:18:25 pm

(You need to check the clips in FCs Browser as NONE. Then edit on a NONE sequence.)
Thanks Rafael, that makes sense. How do I check the clips as NONE in the FC. Browser?

Check out my Vimeo page http://vimeo.com/user9949700/videos


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Rafael Amador
Re: Rendering issue
on Nov 21, 2012 at 6:23:16 pm

[jordi robert] "How do I check the clips as NONE in the FC. Browser?"
Select all the clips, and in the Field Order (field dominance) column, left-click > NONE.
rafael

http://www.nagavideo.com


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Brad Elliott
Re: Rendering issue
on Nov 21, 2012 at 7:16:13 pm

All of the Canon footage we have ingested through L&T comes in native as upper field in FC.

Camera model & settings can effect this but we have ingested many TBs of 5D & 7D and we have never had the need to changed the field dominance.

Try starting a new project, create a new sequence, and import one of your clips and add it to the sequence. See if seq & clip match. Check playback settings.

This is most likely something simple and/or FC isn't playing nice when it should.



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Rafael Amador
Re: Rendering issue
on Nov 22, 2012 at 9:41:38 am

[Brad Elliott] "Camera model & settings can effect this but we have ingested many TBs of 5D & 7D and we have never had the need to changed the field dominance. "
The standard for 1080 HDTV, is Interlaced. That means that even when progressive, is streamed as Interlaced (PSF: Progressive Segmented Frame).
If you are delivering for Broadcast, DVD or Bluray, or whatever thing to be watched on a TV (Interlaced) there is no problem to treat it as plain Interlaced.
But if you are going to make something to be displayed on a progressive screen (Web video), unless you treat it as Progressive (NONE), you will end up making a big shit.
The video won't cause problems, but whatever animated title or graphic will show horrible interlacing artifacts on any computer screen.
rafael

http://www.nagavideo.com


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jordi robert
Re: Rendering issue
on Nov 22, 2012 at 10:44:46 am

In the past when editing 7D footage I notice that sometimes FCP thinks that the best setting for the sequence is upper (odd) and sometimes is None (randomly, for no apparent reason). Either way I have been able to edit without problems and the final delivery is usually for web.

Having said that, and you gonna have to forgive me here, this morning with a fresh head, I realise that the clips that I was moving around the sequence and having to render every time had been colour corrected. So I guess that was the main reason.

Thank you and apologies.

Jordi

Check out my Vimeo page http://vimeo.com/user9949700/videos


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Rafael Amador
Re: Rendering issue
on Nov 22, 2012 at 12:16:22 pm

[jordi robert] "In the past when editing 7D footage I notice that sometimes FCP thinks that the best setting for the sequence is upper (odd) and sometimes is None (randomly, for no apparent reason). Either way I have been able to edit without problems and the final delivery is usually for web."
Jordi,
The footage per se is not a problem. If the footage is progressive (as long as all the line has been captured in the same moment, and there is not movement difference from field to field) you can treat it as progressive or Interlaced and you can edit on a progressive or interlaced sequence. Will always look Progressive.
But can arise two issues:
- That the footage needs to be rendered because the footage is interpreted with a certain field order and is edited on a sequence with a different field order. Sequence settings won't match footage. So If you check the footage as Interlaced, edit it on an Interlaced sequence; if you check it as Progressive, edit on a Progressive sequence.
- The second problem is what I mentioned in my post before. Stuff that has been rendered as Interlaced will show combing on computers whenever the picture has a difference of movement between fields.Everything that is animated (transitions, graphics) will look horrible on computers screens.

So when dealing with stuff that you know is progressive, and to avoid any kind of problems, the best policy is to check it as progressive and edit it as Progressive.
rafael

http://www.nagavideo.com


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