# 3D Rotations - 2.0.1

A simulation of 3D rotations using 3 angles!

Ian Mallett

(geometrian)

OK, before you start, you need to know a little math.

For starters, the 2D games most people make use 1 angle.

Spherical coordinates use 2.

This uses 3, and is comparable in complexity to a 4-dimensional coordianate system.

To solve this problem, I had to resort to matrices to do my trigonometry. Anyway, it was all very complicated, and I spent all day yesterday, working an hour into today to make it work. It doesn't look like much, but it was really, really, really, so hard.

Naturally, since I'm SUCH a nice person, I'm giving it here so you don't waste half your weekend staring into space trying to get this working.

For starters, the 2D games most people make use 1 angle.

Spherical coordinates use 2.

This uses 3, and is comparable in complexity to a 4-dimensional coordianate system.

To solve this problem, I had to resort to matrices to do my trigonometry. Anyway, it was all very complicated, and I spent all day yesterday, working an hour into today to make it work. It doesn't look like much, but it was really, really, really, so hard.

Naturally, since I'm SUCH a nice person, I'm giving it here so you don't waste half your weekend staring into space trying to get this working.

### Links

### Releases

3D Rotations 2.0.0 — 10 Feb, 2008

3D Rotations 2.0.1 — 3 Jan, 2018