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Jittery Motion Using Track Motion
I’m trying to have a series of still pictures scroll across the bottom and top of the screen using track motion, but the result is very jittery motion. In other words, there is a flickering effect in the stills as they advance across the screen.
If I render the clip at 60 fps the motion is quite smooth, but at 29.97 I get the jittery effect. I’ve tried using “reduce interlace flicker” and it didn’t solve it.
Why is it not possible to get smooth scrolling of pictures in 29.97, or is it?
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4 Replies
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It sounds like you are trying to move them too fast. I’m basing this on the fact that 60fps is smooth and 30fps is not so the images must be moving too fast across the screen to allow 30fps to capture smooth movement. Your only options are to slow down their speed or add a motion blur to try and cover it up.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
I think you’re right, but is this a limitation of Vegas, or would other editing software have the same problem?
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I have done that exact thing here except with video instead of jpegs.
https://www.youtube.com/watch?v=OB47vhfq9Ks&feature=plcp&context=C441b397VDvjVQa1PpcFMZMJNWJS1fq6VGANK6H6YB28trvcnNxh0%3D
It worked ok for me.Pentium 2.4 quad|Asus P5G41C-M LX mobo|4 gig corsairs 6400 ram|Corsairs 630 power supply|Gigabyte 8800gt|2x seagate 500gig Hd’s|Lg dvd burner|windows7 premium , SV9E
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[Brian Tallant] “…but is this a limitation of Vegas, or would other editing software have the same problem?”
This is a limitation of physics so every NLE will have the same problem. It is as if you were capturing 30 pictures every second. If an object is moving very fast, the distance it travels between each picture may be so great, that it looks like it’s jumping from picture to picture. You proved this by adding more picture (i.e., rendered at 60fps) and it smoothed out. Try using a but of Motion Blur and see if that tricks your eye into thinking it’s smoother.
One other thing you might try is to create a new project at 60fps and do your track motion in that project, then drop it into your main project as a “nested” project and see if Vegas will blend the frames together to achieve 30fps. This will add some blur to the image but may also make it look smoother to the eye.
~jr
http://www.johnrofrano.com
http://www.vasst.com
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