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Precomputed radiance transfer with spatially-varying lighting effects

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2 Author(s)
M. Fujita ; Graduate Sch. of Media & Governance, Keio Univ. SFC, Japan ; T. Kanai

We propose a new method to render physically-based globally illuminated scenes at interactive speed. Our method is based on precomputed radiance transfer (PRT) (Sloan et al., 2003). Although the shape of model does not change and its position is fixed, we can move any light source with arbitrary shape dynamically during rendering process. This enables a spatially-varying lighting effect which has not been considered in the previous approach (Sloan et al., 2003). We also describe the details of rendering the scene with dynamic lights using cube mapping. Our implementation demonstrates that our method is suited for interactive applications such as 3D games and lighting simulations.

Published in:

Computer Graphics, Imaging and Visualization, 2004. CGIV 2004. Proceedings. International Conference on

Date of Conference:

26-29 July 2004