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CamTwist is a software package that lets you add special effects to your video chats. It's also possible to stream your desktop and still images. With CamTwist, you can also use multiple video chat programs at the same time.
Please note: CamTwist does NOT work with iChat.
CamTwist is totally free and comes with no warranty or support. That being said, I welcome hearing about suggestions and problems you might have. I work on new features and bug fixes in my spare time and unfortunately some things don't get addressed. If CamTwist is useful to you, I'd enjoy hearing about it as well. Lastly, I've started accepting donations. Please feel free to donate whatever you feel is appropriate for CamTwist as it is. CamTwist is free because I enjoy working on it and because I don't have the resources to properly support it. If you decide to make a donation, I thank you, but please do it knowing that I'll still not be able to support you beyond what I already do.
System Requirements
CamTwist requires MacOS 10.4 and most of the interesting effects require hardware that supports Quartz Extreme. To find out more, and if your Mac supports Quartz Extreme. CamTwist can be quite resource intensive, so the more CPU processing power, the better.
How does it work?
CamTwist comes with a few different pieces. At the lowest level, there is a QuickTime component that pretends to be a camera driver. What it does in reality is display the video frames that it collects from the CamTwist application. The CamTwist application is responsible for collecting the video frames, adding the special effects, and then feeding the images to the QuickTime component.
Download CamTwist(Freeware,5Mo)