Horizontal Tearing in Final Cut Pro 6

[Jerry Hofmann]

A MacBook Pro’s screen is progressive, so interlaced video playing back on it will tear… If you change the size of the canvas to anything BUT 100% you should see smooth playback. It’s because it’s only playing back one of the two interlaced fields. If you use it to playback full screen, then it will also tear a bit. There are fixes for this however they’d involve hardware and a second display. a Matrox MXO and a 23″ Cinema display works great with MBP’s for example.

Jerry

[Christian Brown]

Thanks Jerry, I have given your idea a go, but there is still know change to the tearig in the canvas.

I had the same project on a 1st gen MacBook Pro and there was NO Horizontal Tearing in the canvas or on the 32” LCD tv I had pluged in.

I have only just had my Mac replaced in the last week to a 3rd Gen MacBrook pro where I am having this issue.

Never the less I am willing to give anything a go to fix the Horizontal Tearing problem as some of my clients sitting in on the edit are starting to think that it is some sort of effect pugin I like you use on everthing…

Once it is exported and played in Quicktime there is no Horizontal Tearing! What could the problem be?

[Tom Brooks]

It’s always pretty tough to diagnose these problems over the internet without much info to go on. If you could fill in a bit, it might help. I assume you are working with DV footage because you’re on a Macbook Pro, but that could be wrong. How was it shot-525i29.97, 30P, 24P? What is your sequence setting? Also, what do you mean by horizontal tearing? Is it a horizontal “comb” edge on moving objects in the footage (typical of interlaced video on a progressive display)?

The obvious assumption is that what you are seeing is interlace artifacts on your progressive display as Gary already said. Why is this not visible on the exported Quicktime? It depends on the format of the quicktime and how it was compressed. Many exports will result in deinterlacing, which would get rid of the artifact.

Why was it not visible in previous projects? I have a theory on that. Perhaps the newer Macbook has a larger screen and allows you to use your canvas window at 100%. The Canvas will display interlacing ONLY when it’s set to 100%.

Why does it not show up on the 32? The 32 could be automatically deinterlacing.

But without all the details, we can’t know for sure.

[Tom Brooks]

Sorry, I meant to refer to Jerry, not Gary.

[Christian Brown]

Hi Tom

Here is the speck of my Mac

Model Name: MacBook Pro 15”
Model Identifier: MacBookPro3,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache (per processor): 4 MB
Memory: 2 GB
Bus Speed: 800 MHz

Chipset Model: GeForce 8600M GT
Type: Display
Bus: PCIe
PCIe Lane Width: x16
VRAM (Total): 256 MB
Vendor: NVIDIA (0x10de)
Device ID: 0x0407
Revision ID: 0x00a1
ROM Revision: 3175
Displays:
Color LCD:
Display Type: LCD
Resolution: 1440 x 900
Depth: 32-bit Color
Built-In: Yes
Core Image: Hardware Accelerated
Main Display: Yes
Mirror: Off
Online: Yes
Quartz Extreme: Supported
Display Connector:
Status: No display connected

I have been cutting DVC PRO HD 50i footage as well as DVCAM Stuff. Using external SATA drives transferring data through a Sonnet esata express34 card.

On my old MacbookPro 1st gen It all looked great with no tearing.

The tearing i am talking about i can only really describe as being half of the previous frame or field being displayed over the top of the currant frame but at varying proportions as the video plays. You see it on cuts some of the time but mostly when the shot consists of dark to bright images or action/pans. I have tried de-interlacing footage as well as converting files from DV to DVCPRO HD 25p to see if it makes any difference, but it doesn

[Jerry Hofmann]

Try resetting your display preferences… might be something there…

Jerry

[Marcfriedlander]

man , glad to read your post i am having exactly the same situation and just moved a huge project to the new system ……………..
your making me panic less also having a problem with getting apple digital cinema (full screen) work right ….
if you get an answer email me

[Imagewatom]

Hi all,

This is my 1st posting here, but it’s sure not to be my last…

I just wanted to let you know I had similar prob. with FCP6 on an 20″ 2GHz Intel Imac Core Duo w/ 2 GB 667 MHz DDR2 SDRAM.

Here’s the thread from the post if your interested:

https://www.emotiondv.com/cgi-bin/yabb/YaBB.pl?num=1188249114/0

Hope it helps or at the very least you don’t feel so alone…

Peace…

– Thomas

[James Mulryan]

I am getting the same horizontal tearing on my MB Pro 2.4 17″ Hi Res screen 2Gig ram. Any rapid horizontal movement induces this problem. It’s as if the vertical lines do not match up with each other. If you have ever used a 35mm SLR with a split focus circle, when out of focus the vertical lines do not match up. This is what the Hi Res display looks like.
Using DVCProHD 720 24p, FCP 5.1.4 QT 7.1.6 OS 10.4.10 with a FW800 external drive rated at 69MB/s on the Kona test. Does not show up on an 8 core system using the same drive and a Dell 24″ monitor, nor on one of the original Intel Imacs.

[Zvi4343]

So what is the answer and solution!