Michael Frank Deering: VR: HoloFlicks
The concept of HoloFlicks was to allow both live and computer generated films to be viewed in a headtracked stereo environment. This was done by instead of recording individual frames as individual 2D pixels, have them recorded as geometry compressed 3D micro-polygons. In this way the final binding of the viewing matrix for the rendering could be put off until end-viewer viewing time.
An initial version of HoloFlicks was implemented, and four different HoloFlicks “shorts” were produced:
- Horrible Tree: a RenderMan displacement shader generated sequence.
- Monster Crash: a RenderMan displacement shader generated sequence.
- Clay Face Animation: a clay animation live “stop motion” sequence. (Artist: Hallie McConlogue.)
- Scientific Visualization: an animation of a physics particle force and collision simulation.
One of the problems with HoloFlicks were that they looked too real – people thought that they were watching video tape, because they had never seen such high quality images rendered in real-time before. On the other hand, the lack of fast full screen anti-aliasing on Elite3D took some quality away. If hardware geometry decompression hadn’t been removed from the XVR-1000 and XVR-4000, considerably more complex HoloFlicks would have been built.
There never were any formal papers published on HoloFlicks, but this short paper gives a fairly good overview.
Michael F. Deering Deering, “HoloFlicks”, unpublished, 1999.
There are also some notes on HoloFlicks in the course notes of my second Geometry Compression course:
Michael F. Deering, ACM SIGGRAPH 1999 Course notes on Compressed Geometry:
I have a fairly good video tape of HoloFlicks in action; eventually I’ll get it digitized and available on this page.