| Michael M. Stark, Elaine Cohen, Tom Lyche, and Richard F. Riesenfeld. Computing Exact Shadow Irradiance using Splines. In Alyn Rockwood, editor, Proceedings of ACM SIGGRAPH 99, Computer Graphics Proceedings, Annual Conference Series, pages 155--164, New York. ACM SIGGRAPH, ACM Press. |
....Although a decade old, the survey by Woo et al. 32] is still an excellent reference. 2. 1 Object Based Methods Soft shadows can be computed using object space methods such as distributed ray tracing [5] and radiosity with discontinuity meshing [11, 17] or backprojection [7, 29] Stark et al.[28] describe analytic methods for computing soft shadows. These approaches are computationally intensive and are not suitable for fast soft shadow generation for complex scenes. Herf and Heckbert [12] combine a number of shadow images for each receiver using an accumulation buffer [9] The method is ....
M. Stark, E. Cohen, T. Lyche, and R. F. Riesenfeld. Computing exact shadow irradiance using splines. In SIGGRAPH 99 proceedings, 1999.
....of physically based rendering algorithms, both for local and global illumination. In particular, radiative transfers among discrete surface elements arise in finite element methods for global illumination, and in both direct lighting computations and final gathers from coarse global solutions [2, 8, 14]. By far the most ubiquitous computations involve transfers from finite planar areas to di#erential areas. In di#use piecewise constant environments, these transfers correspond to point to area form factors [3] for which a wide assortment of formulas are available. In this paper we present a ....
Michael M. Stark, Elaine Cohen, Tom Lynche, and Richard F. Riesenfeld. Computing exact shadow irradiance using splines. In Computer Graphics Proceedings, Annual Conference Series, ACM SIGGRAPH, pages 155--164, August 1999. 49
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Michael M. Stark, Elaine Cohen, Tom Lyche, and Richard F. Riesenfeld. Computing Exact Shadow Irradiance using Splines. In Alyn Rockwood, editor, Proceedings of ACM SIGGRAPH 99, Computer Graphics Proceedings, Annual Conference Series, pages 155--164, New York. ACM SIGGRAPH, ACM Press.
No context found.
Michael M. Stark, Elaine Cohen, Tom Lyche, and Richard F. Riesenfeld. Computing Exact Shadow Irradiance using Splines. In Alyn Rockwood, editor, Proceedings of ACM SIGGRAPH 99, Computer Graphics Proceedings, Annual Conference Series, pages 155-- 164, New York. ACM SIGGRAPH, ACM Press.
No context found.
Michael M. Stark, Elaine Cohen, Tom Lyche, and Richard F. Riesenfeld. Computing exact shadow irradiance using splines. Proceedings of SIGGRAPH 99, pages 155--164, August
No context found.
Michael M. Stark, Elaine Cohen, Tom Lyche, and Richard F. Riesenfeld. Computing exact shadow irradiance using splines. Proceedings of SIGGRAPH 99, pages 155--164, August
....The method computed the set of umbra and penumbra solution lines at an update rate of 4Hz. A considerable portion of this time was spent moving the thousands of solution lines into the view space out of their model object spaces. Reconstructing the exact shadow is a higher dimensional process [14]. However, an approximate shadow can be obtained using these boundaries. Other problem areas, such as discontinuity meshing in radiosity solutions [15] make use of the boundaries of the shadows to guide effort in solving for global illumination. 5 Discussion and Conclusion Figure 13: ....
#Stark, M., Cohen, E., Lyche, T., Riesenfeld, R., Computing Exact Shadow Irradiance Using Splines, in SIGGRAPH 99 Conference Proceedings, pp. 155-164. 1999.
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Michael M. Stark, Elaine Cohen, Tom Lyche, and Richard F. Riesenfeld. Computing exact shadow irradiance using splines. Proceedings of SIGGRAPH 99, pages 155--164, August 1999. ISBN 0-20148-560-5. Held in Los Angeles, California.
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