Thanks for bringing back my own memories!! I had forget about this but at my first year and while the algebra professor was drawing 3D vectors to explain the l

Thanks for bringing back my own memories!! I had forget about this but at my first year and while the algebra professor was drawing 3D vectors to explain the lecture, I was thinking "that is a 2D surface, so there should be a linear transformation between the two worlds". Later at home, I've found such space transformation and built a small 3D world that you can walk, using only vectors and plain triangles :)