Meek is the UI and animation framework used in a lot of Forge and Form projects. Built on Metal and OpenGL, it's designed to facilitate creating animations, custom geometry and shaders to best realize a creative vision.
The Hype app uses Meek to be able to mix videos, gifs, images, text and effects into live broadcasts.
The video shows Meek running in wireframe mode with a couple of debug settings turned on.
The web version of Reuters.tv uses Meek for Mac to render transitions with dynamic content server-side.
Meek was developed with animation in mind and allows for a variety of ways to control and craft detailed animations.
The game Wide Sky was developed with an early version of Meek.