I'm not getting GreenScreening...

Vamp · Post by **Vamp** » Wed Feb 18, 2004 9:47 pm

In videos such as this that use a Green Screen

http://static.zed.cbc.ca/users/c/cowhum ... /gorie.wmv

The Screen only covers about 3/4 of a background but then how can all the whole background be taken out and a new one replaced when not all of the original background was covered by the Green Screen?

Is this just something that Chromator can do, or AE as well?

And that GS effect looks damn good.

Justin · Post by **Justin** » Thu Feb 19, 2004 1:14 am

I've heard good things about Chromanator, but I use After Effects 5.5 and it has a lot more power and features. You can do all of that in AE. And it's somewhat easy. Chromanator might be more simpler(and cheaper), but AE is better.
As for only covering 3/4, it looks to me they drew a mask around the rest of the fathers body that wasn't in front of the screen, which seems kinda of stupid, he could have fit in front of the whole thing, unless that camera angle was crucial.
I think it was a mask, look in the final clip, some of his leg is more straight.

Epsilon · Post by **Epsilon** » Thu Feb 19, 2004 3:54 am

Yes. You simply mask out what you don't what included. Remember, color screening just makes masking eaiser and more precise.

I3lade203 · Post by **I3lade203** » Thu Feb 19, 2004 5:08 am

You dont have to use a green screen , you can create a mask if you like although some things require it

Epsilon · Post by **Epsilon** » Thu Feb 19, 2004 5:50 am

Filtering a green screen is a method of masking.

Ivan Speilberg · Post by **Ivan Speilberg** » Thu Feb 19, 2004 8:14 am

It's amazing what things a "behind the scenes featurete"can inspire us to do!!! That was imitating the techniques used in "Final Destination 2" when the barbed wire cuts a person in 3.

I don't quite get what you're asking, but think I have an idea....... using multiple layers may do the trick. If the GS is to small, The father alone may be one layer, the head may be another and the room may be another, that's why it's called compositing. Just place them in the right position to look real.

I3lade203 · Post by **I3lade203** » Thu Feb 19, 2004 4:16 pm

Filtering a green screen is a method of masking.

True true! I was talking about after effects masking though

justsomeguy · Post by **justsomeguy** » Sat Feb 21, 2004 2:08 am

i know in premeire you can select what part of the video should be ued to doo the greenscreening, and it cuts the rest out of the video. im probably not saying it right, but heck, i cant say what i mean and when i do i cant spell it right

Epsilon · Post by **Epsilon** » Sat Feb 21, 2004 5:02 am

You just crop out (or mask) whatever you do not want included in the scene.

I3lade203 · Post by **I3lade203** » Sat Feb 21, 2004 6:36 am

True, in ae your actually creating speficic masks around an object, while in pro your applying an effect that keys out (still using a mask) the green and leaves the rest