US Patent 8350858 Defining time for animated objects

Systems and methods for synchronizing the playing of animation objects are presented. An animation object map may assign an animation object to each region of multiple regions of a viewing area. A synchronization shading map may assign a shade to each of the regions, where at least two of the shades assigned to regions differ in intensity. Playing each animation object may involve determining a start time for each of the regions. The start time for each particular region depends upon an intensity of a shade assigned to the particular region by the synchronization shading map, and ones of the regions having different shades differ in their respective start times based on a difference in intensities of shades assigned to those regions by the synchronization shading map. Playing of the animation object within a region begins at the start time determined for the region according to the synchronization map.