Hello, welcome to this lesson in After Effects. In this lesson, we will explore what a 360 video is. A 360 video is either a video recorded with a special 360 degree, spherical lens camera, or a camera rig with multiple cameras arranged in a spherical configuration. The video footage is acquired and through software, stitched together into one composited clip. 360 footage can also be generated by 3D animation software. The footage can be viewed with a VR headset or within a web browser with the proper video player embedded allowing you to click and drag to view everywhere around the scene as the footage plays. The perspective mapping of this footage can be formatted in several ways. One type of image perspective mapping is a CubeMap, a CubeMap divides 360 video into six square images that are used as the individual faces of a cube. CubeMaps are most commonly viewed flat with the six faces unfolded. CubeMaps are one of the best ways to display the way 360 video works in 3D space. CubeMaps are popular in creating 360 environments within 3D game engines. The next type is a SphereMap. SphereMaps act like CubeMaps, but instead of the video being wrapped around the six faces of the cube is wrapped around a sphere. This is how web based video players interpret the footage with the virtual camera viewer on a mobile device or a virtual reality headset positioned inside the center of the sphere. The most popular type of mapping is the EquirectangularMap. This mapping perspective is more complex than others. These type of maps are often use as environment maps to 3D objects. The 360 video footage is unwrapped as a flat image. This is actually what a 360 video looks like before being played in a 360 compatible video player. This type of unwrap footage is an accurate 2D visualization, of 3D data, but isn't very useful for editing. This is just to give a basic understanding of how to work with 360 video. In the next lesson, we're gonna learn how to edit a 360 video in After Effects. Thanks for watching.