I recently finished third in Renderosity's Halloween Animation Contest. One of the prizes I won was Fusion Studio 7, a compositing program from Black Magic Design (after the acquisition of eyeon Software in Sept. 2014). The program is also described as a "visual effects" (vfx) and "motion graphics" application. It is similar to Adobe's "After Effects", which can be thought of as a video layering program (similar to Photoshop's image layers). However, Fusion uses "nodes" (also called "tools"), rather than layers.

You can learn more about Fusion and download a free fairly full featured version (I think) of Fusion 7 (Fusion Studio is a $1,000 product) here: https://www.blackmagicdesign.com/products/fusion

Here is a very basic overview of Fusion: https://www.youtube.com/watch?v=TsiC4bmaWZI

Here is a press release from Sept. 2014 about the Black Magic Design acquisition of eyeon Software: https://www.blackmagicdesign.com/press/release/20140912-02

If anybody has any experience with Fusion, please let me know. I have used After Effects, so I think I can understand it, but there's always a learning curve.

Many thanks to Renderosity and Black Magic Design for a great prize. (3rd Place!)