Bricks in Motion
We are a friendly filmmaking community devoted to the art of stop-motion animation using LEGO® and similar construction toys. Here, you can share your work, join our community of other brickfilmers, and participate in periodic animation contests!
A place to discuss, share, and create stop motion films.
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Hey I wanted to add a background with green screen effects for an upcoming film.
Does anyone know of an easy (and cheap) way of adding backgrounds with Chromakey Software for Mac OS X?!?
Thanks in advance for your help. 
PS: I use iMovie HD for editing
A CANON Powershot for filming
And a free program called PhotoStudio 4 for fx
Well, there's always the option of chroma keying each frame in Photoshop, but that would be brutal.
Your best bet would be After Effects CS5.5 or CS6.
The chroma keying plugins in that program are phenomenal, and very easy to use.
To be honest, your best free bet would be Blender. A steep learning curve though. In fact, I don't think most brickfilmers even know you can use Blender to chroma key. To bad really. If you know what you are doing you can get results that rival After Effects easily. Surpassing them in some cases. My next choice would probably be CineGobs Keyer. Quite good results very, very easily. I would NOT do it frame by frame. That is completely unnecessary now days.
After Effects is expensive, and you asked for something CHEAP. FramebyFrame freezes up constantly, and Blender is more of a 3D program. You can do green/blue screening in iMovie, or I would suggest buying Motion 5 off the app store ($50).
After Effects is expensive, and you asked for something CHEAP. FramebyFrame freezes up constantly, and Blender is more of a 3D program. You can do green/blue screening in iMovie, or I would suggest buying Motion 5 off the app store ($50).
I agree on most of your points, but I can assure you. Blender functions very well as compositor, greenscreener, etc. I use it all the time, I know what I'm talking about. Blender is far more powerful than iMovie for greenscreening if you want to put in the time to learn it a little bit.
It is a general 3d program, but it still has the best 2d vfx tools that I have found for free.
If you are willing to spend $50, get Apple's own Motion 5. It's basically Apple's take on Adobe After Effects, except far less expensive and not quite as powerful (you can add explosions, muzzle flashes and blood from third-party software, like Action Essentials, with ease, but kiss thoughts of light sabers goodbye...). But getting back to your main question, it can easily do green screening/chroma keying. It's what I plan to use when I am set up... but anyway, there are a quite few good Motion 5 tutorials out there on YouTube. Good luck!
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