Editing a background in a video

Support Compositing and Post Processing
1

Hello!

I was wondering if anyone could shed a little light on the process (or even possibility) of compositing a background in a video.

Basically, I was yapping on about how great blender is to a friend of mine and he asked me if you can composite in it. I (of course) enthusiastically agreed and it turns out that my friend is shooting some video of just him standing there talking to a camera for a college project.

What he is after is what i call, the MTV effect (or chroma keying as i have learned it is called by the pro’s!) i.e. to composite a background of say, some foreign city or other backdrop for the programme to be set against.

I believe the node compositor would be able to do this (and please feel free to tell me im wrong!) but as i am mostly a static modeller, i am unsure of how exactly to do it.

So if any of you sage blender-heads out there could help me out, or even point me in the direction of a good tutorial i would be very greatful! (as would my friend!)

Thanks in advance.

Bisslad.

2

this tutorial should get you going

http://vimeo.com/1048359

opposite of what you want but you can probably use the same technique
looks tedious for much footage

Dave

3

Ah thats exactly it! Thank you so much drobbins you are a life saver! Still getting used to the node editor so i have no doubt it will be a tedious affair but i guess thats the nature of the beast eh?? :wink:

Thanks again!

Bisslad