Interactive Spectral Volume Rendering

Steven Bergner, Torsten Möller, Mark S. Drew, Graham D. Finlayson

Research output: Contribution to conferencePaper

19 Citations (Scopus)


We describe a method for volume rendering using a spectral representation of colour instead of the traditional RGB model. It is shown how to use this framework for a novel exploration of datasets through enhanced transfer function design. Furthermore, our framework is extended to allow real-time re-lighting of the scene created with any rendering method. The technique of post-illumination is introduced to generate new spectral images for arbitrary light colours in real-time. Also a tool is described to design a palette of lights and materials having certain properties such as selective metamerism or colour constancy. Applied to spectral transfer functions, different light colours can accentuate or hide specific qualities of the data. In connection with post-illumination this provides a new degree of freedom for guided exploration of volumetric data, which cannot be achieved using the RGB model.
Original languageEnglish
Number of pages8
Publication statusPublished - 2002
EventIEEE Proceedings of the Conference on Visualization - Boston, United States
Duration: 27 Oct 20021 Nov 2002


ConferenceIEEE Proceedings of the Conference on Visualization
Country/TerritoryUnited States

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