# A Little Turn. A World of Pattern.

> Explore a three-mirror kaleidoscope with ray-traced glass, refraction and perspective. Learn the symmetry with a separate 2D study.

[Interactive lesson](https://aestudio.studio/lessons/pocket-kaleidoscope) · [日本語](https://aestudio.studio/lessons/pocket-kaleidoscope/ja)

## Learning outline

- A small experiment
- 01 / Three mirrors, one small world
- 02 / Unfold a reflection
- 03 / Begin with a simpler 2D study
- 04 / Fold an angle in code
- 05 / Make the glass occupy space
- 06 / Add colour with restraint
- 07 / Turn, settle, keep
- Try it / Separate structure from material
- Keep a little world

## Downloads

- [Editable offline starter](https://aestudio.studio/lessons/pocket-kaleidoscope/starter.html)