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Structure From Motion
This demo displays a spinning sphere or Necker cube inside a virtual art gallery. The user can change the direction of the spin. The demo shows how to do on-the-fly OpenGL with simple primitives. You can easily create a cloud of points and then spin the cloud as a way to use relative motion parallax to instantly reveal the shape of the cloud.
Inverted Face Illusion
This demo uses a BioVirtual head to simulate a face mask. When viewed from the inside (inverted) it is almost impossible not to see the mask as facing you from the outside. This demo can be viewed in both mono and stereo to experience the conflicting top-level cues (face structure) and the low-level stereo disparity cues. Under HMD, also inter-pupilar distance can be changed.
Driving Simulator
This demo shows how Vizard can be used to test complicated navigation behaviors. The scripts are short and demonstrate how easy it is to put together something as complex as a driving simulator. The simulator keeps track of root mean square (RMS) error from the center line.
Escher Staircase
This demo is testing one’s ability to keep track of ego-rotations about both a vertical and horizontal axes. You only need to make three 90 deg pitch and three 90 deg yaw rotations to end up exactly where you started (hence Escher). This demo can very easily be networked with another machine allowing someone else to see where in the maze the person is.
Slit Perception
This demo requires a gamepad or joystick! It displays a series of pictures that are covered by two panels with a small slit, allowing the viewer to only see a portion of the picture. The demo shows how one can swing either a vertical or horizontal slit back and forth in order to examine a photograph.
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Multiple Object Tracking
Balls are moving across the screen and when a trial is started a certain amount will turn red for 2 seconds, then turn back to their original color. A little while after that, one ball will turn yellow and the user must decide if that ball was previously red or white.
Stereo Panorama
This demo shows how easy it is with Vizard to capture and display a stereo panoramic scene. A separate scene is rendered for each eye and the height level of the two eyes can be moved independently.
Tilting Room
This demo shows two balls moving along the true horizontal plane. The user can use the arrow keys to change the tilt of the room. This demo shows how easy it is to get an observer to see the world as tilted. The evidence of this is that it is not in the users' report that they feel the world is tilted because most observers will not feel the world tilted, rather the evidence is in one’s ability to still perceive things as level.
Spacial Updating
This demo shows a spatial updating experiment in which you are first asked to memorize pictures on all six surfaces of a cubic room in which you are placed. Then you are asked to imagine having rotated 90 degrees along any of the three possible axes and now point to one of the images.
Endless 3D Maze
This demo creates the illusion of an endless maze. The user travels down a corridor. At each hallway intersection, the user can chose to go left, right, up, or down. This demo is actually a very small model but one that seamlessly tiles together every selection and keeps bringing you back to the same hallway without your realizing it.
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Overview
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Some of these demos require either a stereoscopic display (e.g., stereo HMD or LCD shutter glasses) or a head tracking device.
Some of these demos involving head rotation tracking are designed to use an InterSense orientation tracker.
Go here to download these demos.
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