Note: This video assumes a somewhat intermediate knowledge of math and physics, so I do move quickly through some things. If you have questions on matrix multiplication, the unit circle, vectors, or anything else in the video, feel free to ask at r/TheHappieMakers. There are no stupid questions.
You also may want to pause the video at certain points to double-check my calculations. Doing the calculations is the best way to solidify your understanding of the concepts, but the even BETTER way is to implement them in code. The game dev challenge will be posted on the subreddit within the next day of this video’s upload time, and I’ll be streaming my code throughout the week.
I try to stream every day at 10PM CST, but I may be changing my schedule to accommodate the fact that ~50% of my viewers are on the other side of the planet, and not in the cornfields of the Midwest. So be sure to follow me on Twitter ( or Facebook ( for updates!
My streams are on Twitch at:
Also, we’re about to hit 10,000 subscribers soon which is absolutely insane, especially in just a year. Thank you all, sincerely 🙂