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Essential Math for Spatial Computing | by Oleg Frolov | Oct, 2025 | Medium

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In this essay, I talk about some math I use to design and develop interactive experiences for AR/VR, also known as Spatial Computing. I focused on the practical aspects of it and kept it as simple as possible. Most of the prototypes are available in this GitHub repo. Code examples are written in C# for Unity. I love experimenting with interaction design and exploring new ways to communicate with machines and other people through them. My favorite medium for this is AR/VR. I love that it lets you use your body as an interactive input and makes the surrounding space part of the interactive system. When I create Spatial Interactions, there are many UX Design challenges due to the novelty of the medium and its three-dimensional nature. There are also important technical challenges, such as how to translate what you have in your head into a set of precise instructions that a computer will understand. To do this, you need some math. The math is a bit of linear algebra. Sometimes people call

Essential Math for Spatial Computing Oleg Frolov 13 min read · Oct 21, 2025 -- 2 Listen Share In this essay, I talk about some math I use to design and develop interactive experiences for AR/VR, also known as Spatial Computing. I focused on the practical aspects of it and kept it as simple as possible. Most of the prototypes are available in this GitHub repo . Code examples are written in C# for Unity. Introduction I love experimenting with interaction design and exploring new ways to communicate with machines and other people through them. Circular menu concept inspired by Blender Menu My fav

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