The μMural: A Six-Projector Tiled Display

......................................................................................................................... 1 Overview ........................................................................................................................ 2 Application and Design Goals .................................................................................... 4 Tiled Displays ............................................................................................................... 5 The μMural................................................................................................................... 6 Hardware Overview ..................................................................................................... 6 Positioners .................................................................................................................... 6 Projectors...................................................................................................................... 7 Screen........................................................................................................................... 9 Structural Frame.......................................................................................................... 10 Blending Hardware...................................................................................................... 11 Display Interfaces........................................................................................................ 12 Shared-Memory Rendering Engines.............................................................................. 12 Distributed-Memory Rendering Engines ....................................................................... 14 Software Overview ..................................................................................................... 15 Tiled Display Management Tools ................................................................................. 15 Single Logical Desktop................................................................................................ 15 OpenGL Applications .................................................................................................. 16 CAVE Library............................................................................................................. 17 MPI/Glut Application Framework ................................................................................ 17 Conclusions................................................................................................................. 18 Acknowledgments ...................................................................................................... 19 References .................................................................................................................. 20 Appendixes.................................................................................................................. 22 Appendix A: Parts Lists ............................................................................................... 22 Appendix B: Drawings of Custom Parts ........................................................................ 24 Appendix C: Positioner Blueprints................................................................................ 27 Appendix D: Vendor Contact Information..................................................................... 33