ProRes 444 Aliasing?

[Matthew Rogers]

Hey gang, has anyone else had issues with ProRes 444 aliasing on edges of letters?

Here's what's happening

This doesn't happen if I turn the timeline codec in FCP to Animation, but is very bad (even on a monitor) if I am in ProRes 444.

Any clues on how to get rid of that without having to just render my timeline in Animation? I used to see this all the time in DV codec, but thought it couldn't happen in ProRes due to it being 4:2:2 and 4:4:4

Edit: I just noticed that there is no aliasing in the ProRes file if I look at it in quicktime player. So FCP is for some reason adding aliasing when I put it in the timeline.

Matthew

 

[Joseph Coleman]

When you are playing it in the time line it is being down res'ed for playback. It should be full quality when you stop it though. I would check your sequence settings and make sure it is set to a progressive setting rather than Interlaced.

 

[Matthew Rogers]

When you are playing it in the time line it is being down res'ed for playback. It should be full quality when you stop it though. I would check your sequence settings and make sure it is set to a progressive setting rather than Interlaced.

Yeah, that's not the case. I've actually rendered the clip and the issue is still there. No interlacing either, it's 1080P sq pixel. I've noticed that it doesn't happen on the white text.

Here's the strangest part. If I export it out to a ProRes 4444 file, there is no aliasing on it. So I am guessing it has something to do with FCP view window. The problem I am having now is that when I export it and open it in a quicktime player, the Red turns a burnt orange.

Matthew

 

[David Battistella]

You do understand that in FCP the viewer source and record windows only display 1 field of information, right?

The only way to judge this is on a calibrated broadcast monitor.

David

 

[Matthew Rogers]

You do understand that in FCP the viewer source and record windows only display 1 field of information, right?

The only way to judge this is on a calibrated broadcast monitor.

Well, I can see the same issue on my 17" HD-SDI LCD monitor. So evidently, FCP pushes out the same crap to a monitor also.

Matthew

 

[David Battistella]

Well, I can see the same issue on my 17" HD-SDI LCD monitor. So evidently, FCP pushes out the same crap to a monitor also.

Matthew

Yep. Red is the color which will often produce the most amount of aliasing as well.

Just for fun, change the color layer and see if it makes a difference.

Are you monitoring through a Kona Card? Decklink? or HDMI?

David

 

[David Battistella]

Also,

Check your sequence settings to make sure you are rendering 10 bit and also high precision.

Also set motion filtering quality to best.

David

 

[Graeme Nattress]

At 100% FCP displays both fields, so that shouldn't be the issue.

If media is set to interlaced and timeline is progressive, FCP could be on-the-fly bad deinterlacing?

Graeme

 

[Matthew Rogers]

Are you monitoring through a Kona Card? Decklink? or HDMI?

Decklink HD Extreme

Check your sequence settings to make sure you are rendering 10 bit and also high precision.

Also set motion filtering quality to best.

Was already set to that.

If media is set to interlaced and timeline is progressive, FCP could be on-the-fly bad deinterlacing?

I already checked that. AE is spitting out 23.976 files and FCP's timeline is set to that.

As I said before, if I change the codec for the timeline from ProRes 4444 to Animation, it goes away. So it seems to be something with how FCP is displaying ProRes files since if I export the timeline in ProRes, the output file doesn't have any aliasing in it.

Matthew