ok so I amm trying to take out the green screen on my video and add the person that was on green screen to the actual scene. im on sony vegas and cannot figure out how to do it. since im kinda new to this, could u do it step by step? i need to learn this before i start production. thanks

Okay, here's how you do it.

1) Open Sony Vegas.
2) Import your green screen movie file into the time line.
3) At the bottom of the program click the tab that reads "Video FX".
4) Select "Chroma Keyer" from the left hand scroll menu that appears.
5) Click, hold, drag, and drop "Green Screen" onto the video portion of your clip in the time line.
6) The chroma keyer advanced menu appears and a preview of your video file appears at the right. The program should have automatically taken out the green screen, but if not, follow the next step.
7) SKIP IF THE PROGRAM TOOK THE GREEN SCREEN OUT. Click the eye dropper (looks like a pipet) from the advanced menu and then click again on your video clip preview right on the green (or whatever color you are trying to take out).
8) The solid color in your video preview will disappear, leaving your subject on a transparent background.
9) Create a new video track by going to Insert, Video Track. Import your background video clip into the time line and place it on the second video track.
10) That should be it! When you playback your video clip, your subject should be on your background instead of the green screen.

Hope this helped!

http://vegas.digitalmedianet.com/articles/viewarticle.jsp?id=31596

This tutorial helped me a ton when I was learning how to chroma key with Vegas. Just follow it step by step and change blue screen to green screen. The chroma blur effect is the key but you'll see what I mean when you're reading through.

Hope this helps

Joe

ok so if I have a demo version of Vegas I am not able to green screen the correct way am I? b/c it doesn't have the Show Mask Only box for me to check. and whenever i do get the green out and add a background my subject looks like a ghost.