Tracking motion. at DVinfo.net

Travis Maynard · April 26th, 2005, 03:23 AM

I am in need of help with achieving a certain effect.

I am using After Effects 6.5 and I have a charachter green screened as if he is hanging off of a cliff and the camera is above him. The camera moves a bit so when the camera moves and the backdrop under him doesn't, this gives off a fake look.

Is there a tutorial on motion tracking that backdrop to stick to a certain point of the greenscreened cliff footage so that when the greenscreen footage moves the backdrop moves with it?

Im in a hurry and need to get this done as quickly as possible.

Thanks!

Rob Lohman · April 26th, 2005, 03:43 AM

Did you try a google search, like this one?

http://www.google.com/search?hl=en&q...on+tracking%22

Travis Maynard · April 26th, 2005, 03:54 AM

Yeah, I went to just about all of those links already. Most of those tutorials deal with placing video on top of video and then tracking it or tracking a small animation on a moving car. It's a bit different when compositing (Or it seems so) and tracking a backdrop.

This is the first project I have had to motion track so as a beginner I was hoping someone could dumb down a tutorial for me.

Thanks for your time Rob!

Rob Lohman · April 26th, 2005, 03:56 AM

I hope someone can help you out, unfortunately I don't have any tracking
(or AE for that matter) experience my self.

Good luck!

Stephen Schleicher · April 26th, 2005, 08:11 AM

I have several tracking tutorials on my website that my help you. Basically, I would track the hand or portion of the foreground element (whichever doesn't move), then apply that to your background plate.

Cheers
Stephen Schleicher
www.mindspring.com/~schleicher

Travis Maynard · April 26th, 2005, 05:55 PM

Thanks for the link to your site Stephen!

I messed around and I got it to work almost flawlessly!

The only mistake I made was that the background is centered on the first tracking point. So it leaves half of the background black where the backdrop should be.

It could be because I need to lock the background with both tracking points and I only have it locked by one.

I will test it out.

Thanks again Stephen!! Great tutorial!

April 26th, 2005, 03:23 AM	#1
Travis Maynard Regular Crew Join Date: Dec 2004 Location: Chapmanville, USA Posts: 138	Tracking motion. I am in need of help with achieving a certain effect. I am using After Effects 6.5 and I have a charachter green screened as if he is hanging off of a cliff and the camera is above him. The camera moves a bit so when the camera moves and the backdrop under him doesn't, this gives off a fake look. Is there a tutorial on motion tracking that backdrop to stick to a certain point of the greenscreened cliff footage so that when the greenscreen footage moves the backdrop moves with it? Im in a hurry and need to get this done as quickly as possible. Thanks!

April 26th, 2005, 03:43 AM	#2
Rob Lohman RED Code Chef Join Date: Oct 2001 Location: Holland Posts: 12,514	Did you try a google search, like this one? http://www.google.com/search?hl=en&q...on+tracking%22 __________________ Rob Lohman, visuar@iname.com DV Info Wrangler & RED Code Chef Join the DV Challenge \| Lady X Search DVinfo.net for quick answers \| Buy from the best: DVinfo.net sponsors

April 26th, 2005, 03:56 AM	#4
Rob Lohman RED Code Chef Join Date: Oct 2001 Location: Holland Posts: 12,514	I hope someone can help you out, unfortunately I don't have any tracking (or AE for that matter) experience my self. Good luck! __________________ Rob Lohman, visuar@iname.com DV Info Wrangler & RED Code Chef Join the DV Challenge \| Lady X Search DVinfo.net for quick answers \| Buy from the best: DVinfo.net sponsors

April 26th, 2005, 08:11 AM	#5
Stephen Schleicher Regular Crew Join Date: May 2003 Location: Hays, KS Posts: 188	I have several tracking tutorials on my website that my help you. Basically, I would track the hand or portion of the foreground element (whichever doesn't move), then apply that to your background plate. Cheers Stephen Schleicher www.mindspring.com/~schleicher __________________ Stephen Schleicher www.stephenschleicher.com

April 26th, 2005, 03:54 AM	#3
Travis Maynard Regular Crew Join Date: Dec 2004 Location: Chapmanville, USA Posts: 138	Yeah, I went to just about all of those links already. Most of those tutorials deal with placing video on top of video and then tracking it or tracking a small animation on a moving car. It's a bit different when compositing (Or it seems so) and tracking a backdrop. This is the first project I have had to motion track so as a beginner I was hoping someone could dumb down a tutorial for me. Thanks for your time Rob!

April 26th, 2005, 05:55 PM	#6
Travis Maynard Regular Crew Join Date: Dec 2004 Location: Chapmanville, USA Posts: 138	Thanks for the link to your site Stephen! I messed around and I got it to work almost flawlessly! The only mistake I made was that the background is centered on the first tracking point. So it leaves half of the background black where the backdrop should be. It could be because I need to lock the background with both tracking points and I only have it locked by one. I will test it out. Thanks again Stephen!! Great tutorial!