Green screen track marks

After Effects - motion tracker.

Go to the motion tab and add an adjusted position at every 10 frames.

Here is a demo to do motion tracking in FCP.
http://www.lyric.com/fcp-plugins/index.htm#tracking

Can you explain in better details on what you are trying to achieve.

"I want the floor to be one background and the wall to be another."

Did you mean to split it into two separte layers?

You want to do a 3D motion track. This is not something Final Cut does.

FCP can do limited 2D tracking with plugins, but to do it that would look probably pretty bad.

You want to create 3D track information with something like Boujou, export the track info and create your 3D work in something like Maya or Cinema 4D, and then do your comping in After Effects or Shake.

To expect FCP, which is an editing program, to do all this is pretty much folly.

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I deleted my post

Those are tracking marks that you'll need to mask out. They would normally get masked out in the compositing process, which is far more intricate than just pulling a key off the green.

There are better tools than standard FCP for roto. Silhouette Roto comes to mind. I'm sure others will have other suggestions.

Look here:

http://www.silhouettefx.com/roto/download.htm

This method slipped my mind.

To eliminate the track markers within FCP, use the 4 point garbage matte filter. invert it and keyframe it. Works perfect.

I hope I was helpful. You can close this topic as it being solved if your done.