Project: VRGL

VRGL is a modified OpenGL library which allows the user/programmer to introduce an off-axis and spherical projection effects into the display of any OpenGL application. It exists as a compiled library, (a *.dll file in Windows(tm)) which masquerades as the standard OpenGL library the application normally uses. VRGL intercepts the application's OpenGL calls, introduces needed changes, and passes the requests on to the true OpenGL library. VRGL is intended to work closely with CaveUT. For details, see http://publicvr.org/ut/CUTVRGL.html

You can also download a version of VRGL which supports single-projector spherical displays. Suresh Balu at Elumens Corporation adapted VRGL to use their freely distributed SPIClops API for spherical projection.

Currently, DomeUT/SphereVRGL has been installed on an Elumens' Vision Station. It is also installed in one of the Elumenati's portable domes. See our short movie of UT2004/VRGL/EgyptianTemple in a dome at the "DigitalLife" conference.

The current version of VRGL, supports multi-screen projector spherical projection. We plan to release it in summer of 2008. See our Earth Theater projects.