The object locative environment coordinate system, known as OLE coordinate system, is a coordinate system used for virtual environments in which movement constraints are not only defined by the 3D coordinates of objects but by the position of the camera, as well. This technology was created by Jun Fujiki.

The system projects screen objects to 2D coordinates using the camera position (using a projection matrix) and uses these coordinates to impart movement constraints to the objects of the system. Echochrome

Echochrome

is a puzzle game created by Sony's JAPAN Studio and Game Yarouze, which is available for PlayStation 3 from the PlayStation Store and for PlayStation Portable on either UMD or from the PlayStation Store. Gameplay involves a mannequin figure traversing a rotatable world where physics and reality...

, a game for the PS3

PlayStation 3

The is the third home video game console produced by Sony Computer Entertainment and the successor to the PlayStation 2 as part of the PlayStation series. The PlayStation 3 competes with Microsoft's Xbox 360 and Nintendo's Wii as part of the seventh generation of video game consoles...

 and PSP

PlayStation Portable

The is a handheld game console manufactured and marketed by Sony Corporation Development of the console was announced during E3 2003, and it was unveiled on , 2004, at a Sony press conference before E3 2004...

, uses this technique as an entertainment factor.