Pick from the following images:
The Performer: Realtime Shadows using Multipass Rendering
With a top hat and cane, "The IRIS Performer" demonstrates the use of projected spotlights and cast shadows in a real-time graphic application. The frame shown was rendered at 30Hz using an Onyx RealityEngine2 system. Software Systems' MultiGen was used to model the iris, cane, stool, and top hat. The techniques used for both the spotlight and the shadow are described in the 1992 SIGGRAPH Proceedings in the article "Fast Shadows and Lighting Effects Using Texture Mapping" by Segal, Korobkin, van Widenfelt, Foran, and Haeberli.
The Onyx: SIGGRAPH '93 Pteranodon ride
An IRIS Performer based Virtual Reality fantasy demonstration created by GreyStone Technology and Angel Studios for ACM SIGGRAPH 1993. This real-time application uses a number of advanced techniques including geometric morphing of the pteranodon's neck, animation of the dragon in the castle, texture map scrolling to simulate the motion of the river and waterfall, and reflection mapping for the crystals.
Performer Town: Visual Simulation scene
This rural town environment was one of the first real-time databases ever seen on the RealityEngine. It was modeled by Wes Hoffman of Paradigm Simulation using the Software Systems' MultiGen database modeling tool and is explored using Perfly, the sample real-time application distributed with IRIS Performer. The trees, parking meters, and street lights in this scene are flat textured polygons rotated to face the eyepoint each frame. The traffic signals are animation sequences and cycle between green, yellow, and red states automatically.
Tele: Video Special Effects using Draw callbacks
Real-time video special effects such as the "page-turn" shown here can be implemented using Onyx RealityEngine systems with IRIS Performer. Live video images can be manipulated when the Sirius Video option is used. The IRIS Performer based Tele program shown here was developed by Wade Olsen and Vince Uttley of SGI. It is available in source form and can perform many innovative video transitions. Tele is a cornerstone of SGI's Silicon Studio video environment.
Camcorder: Virtual Camcorder
This recursive virtual environment was created for the 1993 SIGGRAPH Exhibition, with programming by Wade Olsen and Linda Roy of SGI, modeling by Software Systems, the BOOM from FakeSpace Labs, and the CyberGlove from Virtual Technologies. It simulates a consumer electronics store and allows the virtual use of several camcorders, each of which includes fully working controls such as zoom and record. The camcorder is operated and positioned using the glove and the BOOM allows the viewer full freedom of motion. This is another IRIS Performer 30Hz real-time appliction.
Chamber: Lightscape City Hall Chamber
An interior view of the new Jerusalem City Hall as modeled by A. J. Diamond of Donald Schmitt and Company, Toronto, Canada with lighting computed using the Lightscape Visualization radiosity based illumination simulation system and real-time rendering using IRIS Performer. This database runs at 20 Hz on the Indigo2 Extreme system, 60 Hz on an Onyx RealityEngine2.
Spacecraft: Spacecraft model in FLIGHT format
One of the many 3D models included with the Friends of Performer. The craft is made up of 803 triangles.
Formula 1: Racing Simulator with Collision detection
A high-performance racing simulator created by Computer Arts & Developments of Madrid, Spain. The demo was shown at the Silicon Graphics booth at SIGGRAPH '93, running on a Onyx RealityEngine2 with 4 CPU's and 3 channel MCO.
Operating Room: LightScape Operating Room
A polygonal representation of a hospital operating room, created by Lightscape Technologies. The original database contained 6,486 polygons; after radiosity calculations, 23,761.
SGI Building: New Silicon Graphics Office building
The mayor of Mountain View, CA used an Onyx RealityEngine2 to "walk through" this model of a proposed new Silicon Graphics Office Building in a ground-breaking ceremony. The new building, which will be Silicon Graphics' training and support center, is currently under construction at the corner of Shoreline Blvd. and Pear Ave. in Mountain View. It is scheduled to open in 1995.
Berkeley: UC Berkeley fly-through with Virtual Reality interface
A fly-through of the University of California, Berkeley campus developed by Paul Mlyniec at MultiGen Inc. to demonstrate a novel in-scene virtual user interface.
Your Image Here: Submitting images
If you have a screen snapshot you'd like included in the IRIS Performer Photo Gallery, send mail to aschaffe@sgi.com
Compiled by: Allan Schaffer
Click to view (86K bytes)
Click to view (183K bytes)
Click to view (105K bytes)
Click to view (45K bytes)
Click to view (45K bytes)
Click to view (105K bytes)
Click to view (70K bytes)
Click to view (54K bytes)
Click to view (68K bytes)
Click to view (174K bytes)
Click to view (87K bytes)