What are alpha channels?
Alpha channels are used to create videos that contain partially or completely transparent elements. These resources are often used when combining videos using multiple layers. The alpha channel is an additional layer of information that assigns a transparency value to each pixel in the video. This allows a portion of the video frame to be partially or completely transparent. Videos with alpha channels are often used when composing videos using multiple layers.
Alpha channel videos can be truly valuable assets in creative projects and can be easily integrated with your other assets.
Some codecs support alpha channels while others do not. However, if you are creating video with alpha channels, there is an easy way to include these assets in your project, regardless of the file type, using overlays. If you've ever seen a clipping black and white duplicate attached to the end of a video, it was matte brightness