weird borders appear when doing track motion

essami wrote on 3/19/2005, 3:03 AM

Hi,

I drew a lot of circles and scanned them into photoshop and saved them as a jpeg's. I then imported them and put them on a video track in vegas. Then I rendered this as an avi file to create an animation.

I have a video track where a person is walking. I used motion track so that the circle avi file is always on top of the mans face. very simple.

But the weird thing is that somehow vegas makes these black borders appear that are the size of the circle avi file. It's as if the image would have black edges.

Any idea where these borders come from. I know its Vegas doing them but is it before I render the jpeg animation or because of the track motion?

----EDIT----

I just noticed: The borders appear when I choose multiply on the animated circle track. How can I prevent this?

Thank you,

Sami

Comments

Chienworks wrote on 3/19/2005, 4:38 AM

Are your circles dark on a white background?

Try making the image files at least twice the frame size. For example, if you're working with 654x480 NTSC then make them 1400x1000 or so. Put the circle in the middle. Zoom in with track motion so that you're only seeing 654x480 of the image. Now you'll have lots of room ot move the image around without going off the edges.

essami wrote on 3/19/2005, 4:57 AM

Yes theyre dark on white background.

Im working with 1412x1412 resolution images.

The problem is that I also rotate and resize the image all the time . So the borders will be visible at some point no matter how big resolution Id use.

Sami

essami wrote on 3/19/2005, 11:02 AM

OK, got it.

track 1 = the actual footage of a person walking (multiply this instead of the circle)
track 2 = the black circle
track 3 = white solid

now it works a-ok.

Sami