I've got some footage of two people sitting in the car at night. You can see them from the back (the camera was in the trunk of the car) and it is all quite colorful - which is nice, but I would like to make the two men talking to each other only black silhouettes (while everything else will be colorful. Do you please have any ideas how I could do this?
Thans a lot for your time.
When you shot this, did you hope you could do something in After Effects without actually knowing what to do?
Some people will suggest a variety of keying processes. This may or may not work -- we can't know for sure because we haven't seen your footage.
The only reliable way to do it is this: you will need to rotoscope the people to isolate them from their surroundings. This involves animating VERY precise masks around the people, sometimes on a frame-by-frame basis. If this sounds like a very painstaking and time-consuming process, you are absolutely right.
Dave's Stock Answer #2:
When you're out on a shoot, and you say, "we'll fix this in post" without knowing PRECISELY HOW you're going to fix it in post, don't shoot it! You'll only end up shooting it over again.
Since post typically costs three times the cost of production, fixing something in post is not a way to save money, but rather a way to spend more of it.
And, before you say "well fix it in post," always consider who's doing the work, especially if you're the one doing the editing.
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA
I didnt shoot the film yet, I just have a few sewconds to see what it would like:-). I wouldnt film something without knowing in advance what Im going to do with it. So do you have any ideas what to do with it, please? Rotoscoping is pretty desperate:-). Please? Any suggestions welcome.
Thank you:-). Maybe these are stupid questions, but it's better to look dumb than to be: Why would you duplicate the car layer and put it on top of the chroma key layer? Also, I suppose the empty car could just be one frame with one mask? I think the only thing that will be in front of the actors will be the backs of the seats.
Once again, thanks for your time.