# Artificially expanding green screen area **URL:** \ **Category:** Production Switchers\ **Created:** [July 27, 2016, 12:26am UTC](https://rossvideo.community/t/artificially-expanding-green-screen-area/12797 "2016-07-27T00:26:00Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![wlioproduction](https://rossvideo.community/letter_avatar_proxy/v4/letter/w/d9b06d/32.png) [@wlioproduction](https://rossvideo.community/u/wlioproduction)\ **Post date:** [July 27, 2016, 12:26am UTC](https://rossvideo.community/t/artificially-expanding-green-screen-area/12797/1 "2016-07-27T00:26:00Z")
I have been tasked with trying to figure out a way to make our greenscreen area larger in switcher. Do to studio space issues we have a rather small greenscreen. Is it possible to add a matte or mask around the edges of our greenscreen area and key a camera over it while maintaining our radar source? The talent will not be stepping into the artificial area we are just looking to shoot wider. It seems that it is not possible to key over a ME source. It never keys. So I am at a loss on how it would be possible to create this effect. - Our set up as of current is Camera 1 shoots the green screen.(Weather Wall) - Standard ME setup for keying camera 1 over our radar source (1 cut over with chromakey with radar source under) ---
**Author:** ![leso\_reilly](https://rossvideo.community/user_avatar/rossvideo.community/leso_reilly/32/159_2.png) [@leso\_reilly](https://rossvideo.community/u/leso_reilly)\ **Post date:** [August 12, 2016, 5:42pm UTC](https://rossvideo.community/t/artificially-expanding-green-screen-area/12797/2 "2016-08-12T17:42:00Z")
Sorry for the late reply. You would need to do a Box Bask in Key 1 and then Invert the mask so that the outer region is the item being masked. You could also use a pattern mask if the box sides cause and issue. [#Vision](https://livinglive.community/search?s=tags%3A%22Vision%22&executesearch=true)