Help ! Interlace Lines Showing up !

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plainman007

Well-known member
Hi,

I have some footage of a new born. The parents are friends and asked me if i can make a small clip with music etc. Now i captured the video of 20 mins duration. Vegas shows its properties as 29.970 fps, progressive, 720x480. The video runs smoothly in windows media player when i previewed after capture. No Interlace lines visible. In vegas preview i can see interlace lines around the edges of moving people. Or when the baby moves its hand etc. The moving elements have jagged interlace edges to them. When played in media player its only a smudge on moving parts which is more aesthetic. Now its showing in all preview modes. Its showing in the rendered out put too. My project settings were set to match source footage. I used the match to footage button. I render out to a simple wmv file and theres lines around moving edges. Can someone help ! David Jimerson ! Any Help...Plz.
 
What timeline do you have it in? (Check the Properties.)

What did you shoot this with, and in what mode?
 
The parents shot on a normal handycam. Basic. I dont know what modes. But the orginal captured file plays perfectly without glitches in media player.

Vegas Timeline Properties. 720x480, 29.970fps, Progressive, 0.9091 pixel (ntsc dv)aspect, Frame Rate 29.970 fps. Full resolution rednering quality = BEST. Motion Blur = GAUSSIAN. Deinterlace Method = BLEND.
 
It's not progressive footage, so you shouldn't have it on a progressive timeline. But if that's what you want to do, make the deinterlace method "Interpolate" and not "blend."

Interlace lines are going to show up because it's interlaced footage.
 
Hi David,

The footage is progressive. I am checking this in the media properties panel. I mean within vegas if u right click and select properties. Even the properties bar at the bottom of the media pool window says field order = 0 (progressive scan). Should we ignore that and try upper field first in the project settings ?
 
Standard DV is lower field first. Vegas can remove pulldown with 24p cameras but it's not 100% perfect at always choosing the clip properties.

If you know it was a consumer DV camera then try NTSC DV 60i, 29.976, lower field first. Edit the clip as standard DV. Output to DVD Architect with the NTSC DV template.



S Cannon
 
You mean set the project as 29.970 fps / lower field first / blend fields.
Im trying to make a windows media file which they can play on their computer. So the DVDA doesnt factor here.
 
What exact camera is it? Is it a Canon Elura or a Panasonic DVC30 or something else which can shoot 30p or "Frame" mode?

Again, you don't want "blend fields" for a deinterlace method -- you want "interpolate fields."

When you make a WMV file, it should automatically be progressive. But, again, "interpolate fields."
 
Its a sony handycam. Very basic model. Im trying now with interpolate fields. Ive set the preview to large size. So i can preview how the render is going. It seems kinda ok. Though its slightly (very slightly) seen on fast moving objects. Why does this happen ?
 
But the test renders i did were on small selections. I rendered small regions. I noticed the problems there itself. I always do a small render of a selection as a habit before waiting out on a long render.
 
Just for the record. I found this interlacing lines to be appearing only in the wmv9 renders. At least they were more prominent there. Ive completed the render and by setting a higher bitrate and project setting to lower field first and interpolate. Made the problem a little less obvious. Anyway im wondering what sort of NLE that has such good capabilities gives you wrong project properties. It says the footage is progressive. While its actually interlaced footage. Then what good is the media window. They might as well could have omitted the properties panel and just let editors guess or find out elsewhere before they imported it into vegas, rather than give wrong information about the properties of video files. Has anybody else working with FCP etc encountered such errors ? I mean does FCP or AVID also sometimes guess what the file properties are ??
 
I've never seen it misidentify footage before. Any chance you can upload any of it to see how it behaves for me?
 
Sure but i dont have any upoading location unless you have a mail id or something where i can send you a small portion of a couple of secs just to keep it small.
 
plainman007 said:
Its a sony handycam. Very basic model. Im trying now with interpolate fields. Ive set the preview to large size. So i can preview how the render is going. It seems kinda ok. Though its slightly (very slightly) seen on fast moving objects. Why does this happen ?
Click to expand...

Hi!

I have the similar problems.. :(

But I work mostly with interlaced futage..

But when I render to final .avi, print to tape or later burn to DVD.. interlaced is very disturbing on all moving objects / parts..

I tried both VEGAS 6 and VEGAS 7.. With all factory settings.. On different computers..

I never had those problems with Adobe Premiere.. but I found VEGAS faster to work with...

I tried all other settings: progresive, remove flickers, upper field,...

And I can not get away from it...


It is very problematic because I like VEGAS very much.. but the end product is not what it should be..

Now, I started to produce computer-TV-show for TV.. and I can not put out such a video material..

Any clue ????
 
If you're using interlaced footage, you're going to have interlace lines, unless you convert it to progressive. But that's more than just changing it "progressive" in the media properties; you have to render it out as a progressive file.

But if you're going to TV, all TV signal is interlaced. You won't see interlace lines on a standard TV, no matter what you play it from.
 
David Jimerson said:
If you're using interlaced footage, you're going to have interlace lines

But if you're going to TV, all TV signal is interlaced. You won't see interlace lines on a standard TV, no matter what you play it from.
Click to expand...

True..

I checked out some other forums and find out that my problem is ( probably ) : using ATI graphic card.. While capturing from tape, ATI writes as upper fields first.. but latter VEGAS assumes that futage is lower field first and make some kind of "double interlacing "..which is very noticable at standart TV and all viewing devices..

By other forums, the only solution is to configure every clip's on timeline properties to "lower field first" manualy..

But if you have (let's say) 100 captured clips at timeline.. it is the whole lot's of work..

I am looking arround for a new graphic card other than ATI, now...:angry: :badputer:
 
:huh:

I don't think that's accurate. Your video card shouldn't have anything to do with capture. You're capturing through firewire and the VidCap program shouldn't access the card at all, so there's no way for the video card to monkey with the footage.

The capture process is merely one of transferring all of the 1s and 0s on the tape into the computer. The program isn't transcoding or processing the information in any way, so there's really no way a video card could "switch" the interlacing like that.
 
As David says theres absolutely no connection between your graphics card and capturing video. Leteeci, just get it straight, the graphics card is purely something that is a bridge between your processor and your monitor. Read that twice and understand it well. Graphics card will help you with video games. 3d programs and software (during the screen viewing and navigation etc), but even in 3d softwares the graphics hard doesnt help you get a better render. It only helps your screen display complex geometry faster. SECOND ....theres nothing in vegas which lets you select each clip individually and set them to upper field or lower field. Upper field lower field etc are settable only at 2 points. 1.Project Settings. 2.Certain Render Templates. So where and how did you manage to select each clip individually and set their field order ? And just for the record,, if at all there is some setting that you would like to apply to all your clips (like about 100 of them as you say) you dont have to do that for each clip. Just select the first (earliest) clip on the timeline and right click on it. In that menu you can choose "select events till end". This will select all of the events to the right of the selected clip irrespective of how many ever there my be. Then apply the effect or color correction or whatever and it will get applied onto all the clips. But still there is not setting field order for each clip individually.

Now to the actual problem in question. I too love Vegas. Ardently. But i should say there are some buggy loose ends. In fact it repeatedly recognized my ntsc dv footage as progressive. And that was from a non progressive consumer handycam. It also gave a heck to any setting combo. And i tried them all. All combinations. I worked for 15 hrs over 3 days just trying alternate settings/ field modes and all sort of workarounds. Like you say. It just couldnt get rid of the interlace lines EVEN after a render. Except if i rendered back to DV AVI. Theres no two ways about that. It just couldnt get rid of the interlace lines and make the video progressive. Then it would suddenly have a mood swing. I just drag onto the timeline a 20 minute clip of DV with absolutely no effects, CC, nothing.....and it doesnt play without dropping frames even when the preview is in PREVIEW AUTO. Lol,,,lets not even consider preview full. Even DRAFT FULL preview settings dropped frames. DRAFT AUTO was the only one giving real time playback. Now i know why Vegas is not taken seriously. Before i learnt video editing etc i used to regularly pay studios to do my work. Ive never seen any studio drag your video onto the timeline and say "please wait its choking on your video,,,well come back after a coffee and start editing" Thats why no one in the professional sector has accepted this software. Granted Vegas has its own plus points. It doesnt need any extra hardware etc. But its just that. And you get what you paid for. It can never contend with avid, fcp etc. But those fellas cant do bezier masking and 3d layering while Vegas can. Vegas cant capture video for nuts. Couldnt do it with the same handycam. POWER DIRECTOR a crappy little software captured the DV like a dream and without a hitch. Even the camera control from within the software was very responsive and rock stable. Whereas in Vegas i hit stop once or rewind and it stopped recognizing the device connected. REBOOT. A professional sony broadcast distributor here couldnt capture HDV on thier own system using Vegas. They rebooted their machine nearly 20 times. Weve just gotta live with it. Now im really having second thoughts on wether my HDV project will actually work on Vegas. By the way my system is a 3.4 ghz dual core with 2 gb ram and almost a terrabyte of HD space thats empty right now. And yet this is the performance i get. I think i should get one of those hi end machines from NASA. For my next project i just got a standby studio that actually works with FCP and HDV everyday. Ill give Vegas a shot but if it doesnt work, ill get it done at that studio. I juts feel stupid i invested in hardware just for this one major project. Money that could have been spent on a pro studio to get the job done. But my machine just breezes thru 3ds max etc. Which are more heavy applications than video. Just dont know what !!!!

Please Note : This is just my experience and my situation. Still think Vegas has tremendous potential and an amazing toolset for VFX work.
 
Last edited:
Hello All,

Was now working on a .DAT file. 352x288, 25 fps, Even in Draft Preview Mode Its flickering at ceratin locations. But at cretain particular locations only. But when i play the same dat file straight on media player those areas have no flicker. So the orginal is ok. But inside vegas on the preview the damn thing flickers and shows flashes frames that are from 2 or 3 secs + or - the current play position. Whats happening ? Do i need to uninstall and reinstall ?
 
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