0.7 beta, 2006-01-22: controlled startup window size resizing window does no more result in heap overflow 0.8 beta fixed oversight, that caused rotated shapes showing wrong faces rotating view now rotates around the center of the selected compound added zoom 0.8.1 beta changing polar coordinates now centers camera on 0 added some tooltips in view control 0.9.1 2007-02-04 level system added sounds two additional objectives renamed v1,v2,v3,v4 into x,y,z,w recognizes now non-reachable goal before only one compound is left fixed that mouse had to be over the view screen for keyboard input being possbile 1.2 2008-08-07 Complete 4D occlusion culling works now! 4 new cool levels New sounds from freesound.org Ability to save and load levels/creation of own levels. Completely reworked control panels, discarding standard elements, Adjustable orientation in 3d and 4d. Dimetric projection Saving of preferences now possible Unified keyboard control Viewing axes have now arrows and labels are drawn to the side More convincing blob indicating the selected object Java web start 1.2.1 2008-08-10 Fixed a bug with visible edges in occlusion culling Fixed swapped object rotation keys