green screen use for backround/ free backrounds

Green screen can be a tricky beast. I strongly suggest going to YouTube and typing 'green screen tutorial' for some instructions and tips.

Getting the lighting right is the toughest aspect. Do it wrong and you'll be pulling your hair out trying to fix it in post.

Hi Mike

I made a video tutorial on how to light a greenscreen with guerrilla equipment

http://www.youtube.com/watch?v=_Mhz41X6aVc&feature=plcp

Videomaker also has a lot of articles about greenscreen. Visit this link to check some of them.

AfterI film a subject on a green screenand take the videointo Edius 6I want to mask (cut)out certain portions of the green background I don't need or want. I use the chroma key to get rid of the remaining green. When Iinsert the keyed video onto the time lineit blocks out most of my background video. How do I get rid of the black background from the keyed videocovering my background video?

Jeff Gillilan

Jeff from what I could understand from your question it seems you are missing a step in the chromakeying of Edius 6. My apologies, I had never use Edius so I can't help there. Search for a tutorial on how to do chromakeying with Edius or (like I do) start hitting all the buttons to figure out which one does the trick.

reverse it... chromakey first, then mask off the extraneous material that doesn't key.

Same result Bill, but thanks! I will try to e-mail Grass Valley but they usually do not respond back. Maybe another Edius user will respond in the fututre from here.

Hi Mike, I am not an Edius user, but are you using multiple timelines/compositions in your project? There may be a setting somewhere that allows the keyed footage to "pass through" when used inside of another timeline in the project. Hope that helps, good luck!