Some problems encountered in the development of a virtual reality system for evaluating human performance during emergency power-off aircraft landings

David F. McAllister; Bradley Edward Morris; Kris Matson; Richard Christopher Hogan; Donald H. Mershon; Celeste Marie Mayer; Ray Lim; Michael Holmes; Jay Tomlinson

doi:10.1117/12.430847

22 June 2001 Some problems encountered in the development of a virtual reality system for evaluating human performance during emergency power-off aircraft landings

David F. McAllister, Bradley Edward Morris, Kris Matson, Richard Christopher Hogan, Donald H. Mershon, Celeste Marie Mayer, Ray Lim, Michael Holmes, Jay Tomlinson

Author Affiliations +

Proceedings Volume 4297, Stereoscopic Displays and Virtual Reality Systems VIII; (2001) https://doi.org/10.1117/12.430847
Event: Photonics West 2001 - Electronic Imaging, 2001, San Jose, CA, United States

Abstract

A flight simulator was developed for studying the behavior of pilots in power-off aircraft landing situations. The simulation environment includes a 5-meter hemispherical dome in which the authors have installed a cockpit from a Cessna aircraft. The dome manufacturers provided their version of OPEN GL 1.1. The graphics rendering software has undergone constant modification because of computer and projection hardware changes and a lack of knowledge and understanding of the manufacturer's undocumented version of OPEN GL. The development team was led to believe that real time rendering of photographic quality images from 3D models was possible using the existing hardware and software. This was not true even for very simple environments. Flat surfaces must undergo major tessellation to project correctly on a hemispherical dome. The number of polygons to be rendered is increased by orders of magnitude. The tessellation also reverses some depth relationships, which causes parts of objects to disappear and reappear during the simulation. In addition, aliasing artifacts are severe because of the limited resolution and lack of antialiasing capabilities of the hardware. The authors document their experiences and their solutions to some of the rendering problems encountered.

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David F. McAllister, Bradley Edward Morris, Kris Matson, Richard Christopher Hogan, Donald H. Mershon, Celeste Marie Mayer, Ray Lim, Michael Holmes, and Jay Tomlinson "Some problems encountered in the development of a virtual reality system for evaluating human performance during emergency power-off aircraft landings", Proc. SPIE 4297, Stereoscopic Displays and Virtual Reality Systems VIII, (22 June 2001); https://doi.org/10.1117/12.430847

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KEYWORDS

3D modeling

Visualization

Virtual reality

Fiber optic gyroscopes

Manufacturing

Clouds

OpenGL

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