video of Lian Ojakangas's three-dimensional budgie simulation. The budgie model was created in Matlab, and pictures of parts of budgies just like the Lian's famous Kosai are texturemapped onto the facets.
The budgie is rotating about the magenta line, and quaternion multiplication was used to render the points on the model as it rotates about the magenta line.
![](https://s2.save4k.ru/pic/Eo65-mvbtJQ/maxresdefault.jpg)