Unmult After Effects Plugin

If you have ever struggled with a black solid that refuses to go away, or your "Screen" blend mode looks washed out, this guide is for you. We will dive deep into what Unmult is, how it works mathematically, why it is superior to standard blending modes, and how you can get it for free. Unmult (short for "Un-Multiply") is a plugin designed to remove black backgrounds from image sequences or video clips, creating a transparency channel (Alpha Channel) where the black pixels exist.

When you import a standard video file (like an MOV or MP4) that was rendered on a black background, After Effects sees it as a "Solid" layer. There is no transparency. If you simply place this layer over another image, you just see a black box. unmult after effects plugin

While standard keying tools like Keylight are designed for green or blue screens, a massive portion of visual effects assets comes with a pure black background. This is where the becomes an indispensable tool in a compositor’s arsenal. If you have ever struggled with a black