Thanks for interested this project. The construction of a 4D object is no difference from 3D. You need a 4D rotation matrix or quaternion 4D rotation with 4D -> 3D perspective projection. For detail information, please go to the web site listed under my project reference. Thanks. This project demonstrates 3D projection of a 600-cell (with 5 cells highlighted) performing a double rotation. Rotation: c, v, left/right arrow key. Zoom / Sink: m, n key Key / Mouse: space bar Reset: r key End All: e key
changed alot
