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Hochschule Düsseldorf
University of Applied Sciences


Fachbereich Medien
Faculty of Media

Labor für Virtuelles Studio / Virtuelle Realität

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Abstract: Lighting an Interactive Scene in Real-time with a GPU and Video Textures

Carsten Juttner and Jens Herder. Lighting an Interactive Scene in Real-time with a GPU and Video Textures, Journal of the 3D-Forum Society, Vol. 20, No. 1, pp. 22-28, March 2006.

The presentation of virtual environments in real time has always been a demanding task. Specially designed graphics hardware is necessary to deal with the large amounts of data these applications typically produce. For several years the chipsets that were used allowed only simple lighting models and fixed algorithms. But recent development has produced new graphics processing units (GPUs) that are much faster and more programmable than their predecessors. This paper presents an approach to take advantage of these new features. It uses a video texture as part of the lighting calculations for the passenger compartment of a virtual train and was run on the GPU of a recent PC graphics card. The task was to map the varying illumination of a filmed landscape onto the virtual objects and also onto another video texture (showing two passengers), thereby enhancing the realism of the scene.


graphics processing unit, shader programming, video textures, virtual prototyping




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