Abstract
Real-time cinematic relighting of large, forest ecosystems remains a challenging problem, in that important global illumination effects, such as leaf transparency and inter-object light scattering, are difficult to capture, given tight timing constraints and scenes that typically contain hundreds of millions of primitives. A solution that is based on a lattice-Boltzmann method is suggested. Reflectance, transmittance, and absorptance parameters are taken from measurements of real plants and integrated into a parameterized, dynamic global illumination model. When the model is combined with fast shadow rays, traced on a GPU, near real-time cinematic relighting is achievable for forest scenes containing hundreds of millions of polygons.
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Steele, J.E., Geist, R. (2009). Relighting Forest Ecosystems. In: Bebis, G., et al. Advances in Visual Computing. ISVC 2009. Lecture Notes in Computer Science, vol 5875. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-10331-5_6
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DOI: https://doi.org/10.1007/978-3-642-10331-5_6
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-10330-8
Online ISBN: 978-3-642-10331-5
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