What is the difference between Alpha Matte and Luma Matte in After Effects?

I often got Alpha and Luma matte confused when I was getting started in After Effects. I would cycle through them until I achieved the look I was going for. You shouldn't have to do that! Shorts Playlist: https://www.youtube.com/@BallerFX/shorts === 👉Subscribe: https://www.youtube.com/@BallerFX Motion Templates: https://ballerfx.com/ Visit our website: https://www.ballerfx.com/work Find me on the web: https://www.linkedin.com/in/petersonjustin18/ https://vimeo.com/petersonjustin www.Instagram.com/motion_jp/ www.Twitter.com/motion_jp