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SI3D
2005
ACM

Geopostors: a real-time geometry / impostor crowd rendering system

10 years 9 months ago
Geopostors: a real-time geometry / impostor crowd rendering system
The simulation of large crowds of humans is important in many fields of computer graphics, including real-time applications such as games, as they can breathe life into otherwise static scenes and enhance believability. We present a novel hybrid rendering system for crowds that solves the classic problem of degraded quality of image-based representations at close distances by building an impostor rendering system on top of a full, geometry-based, human animation system. This enables almost imperceptible switching between the two representations based on a “pixel to texel” ratio, with minimal popping artefacts. Seamless interchanges are further facilitated by exploiting programmable graphics hardware to efficiently enhance the realism and variety of the dynamically-lit impostors, thereby also improving on existing impostor techniques. To test our system, our virtual crowds are embedded in an urban simulation system (as shown in Figure 1). The results demonstrate a system capable ...
Simon Dobbyn, John Hamill, Keith O'Conor, Carol O'
Added 26 Jun 2010
Updated 26 Jun 2010
Type Conference
Year 2005
Where SI3D
Authors Simon Dobbyn, John Hamill, Keith O'Conor, Carol O'Sullivan
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