In this video, we look at a new family of collisions, the ray collisions. We describe a ray class and implement the different collision algorithms with the various structures in our scene. And finally, we integrate it with the octree for an efficient and accurate collision checking system. • GitHub commit creating linalg.h and linalg.c (existing code): https://github.com/michaelg29/yt-tutorials/commit/8bf52a058de095dd49376e56c2b3dee634c00bb0 • Website: https://michaelg29.github.io/ • Twitter: https://twitter.com/MichaelGrieco10 • Discord: https://discord.gg/Uj54bDF • This Github Repo: https://github.com/michaelg29/yt-tutorials • This Playlist:    • C++ OpenGL Tutorial   Listened to the album, One, by C418 (c418.org).