Time Lapse

[John Jaquish]

I'm having a little trouble when speeding up the clip. I'm speeding it up a lot (3200%), and when I play it back, it's all jumpy, even though it was completely steady at a normal speed. Will this "jumpiness" carry over when I finally export the finished video, or is it just a factor of the playback while editing?

 

[Tim Kolb]

Re: Time Lapse

I'm having a little trouble when speeding up the clip. I'm speeding it up a lot (3200%), and when I play it back, it's all jumpy, even though it was completely steady at a normal speed. Will this "jumpiness" carry over when I finally export the finished video, or is it just a factor of the playback while editing?

Was the footage shot on a tripod? Was the camera moving at all?

Is the shot moving, or is it the content that's "jumpy"?

3200% speed (with all due respect) is not usually a technique employed for steadiness.

Now...if it's a blossom opening or some other similar application, then I suspect that wind could have effected your camera slightly on the tripod...too little to see at normal speed possibly.

Depending on just how long the clip is after speeding it up, you have some options.

AE could take the clip and motion track it to steady it. (I wouldn't do this until after the speed up so you don't have to let it render for a week).

Otherwise, you could try the Steady Pro LE plugin that comes with PPro...

OR, you could take the accelerated clip and export it as frames and take Photoshop and manually place each frame to make sure they're properly placed, crop the frame to get rid of any resulting edges, resize the image to the proper framesize...and export sequential frames again.

Not a lot of easy options, but options nonetheless...

 

[John Jaquish]

Thanks for the reply. I'm almost positive that the jumping is due to the playing of the clip lagging, because the jumps occur at different times when I play it. So, I'm wondering if this will stop once I export the finished project or not.

 

[Tim Kolb]

So the "jumpy"-ness is in how fluid the motion is?

What is the content?

 

[John Jaquish]

Yeah. It's clouds moving across the sky.

 

[Tim Kolb]

So you're watching this in RT preview? (DV) or did you render it?

If it's rendered, it may be that 3200% isn't "rythmically" a good number that calculates out evenly. You might want to fool around with some slight variations.

 

[John Jaquish]

Heh, I got it. I just had to render it. Thank you for the help.

 

[Tim Kolb]

Excellent. No problem.