K. Chiu, K. Zimmerman, and P. Shirley, "The light volume: an aid to rendering complex environments," in Eurographics Rendering Workshop, pp. 1--10, 1995.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....approaches. 3.2.2 Monte Carlo and Hybrid Techniques Pure Monte Carlo techniques such as path tracing [17] and bidirectional path tracing [37, 18] explicitly avoid taking advantage of coherence in order not to add bias to the solution. Variance reduction techniques such as importance sampling [20, 16, 2] or control variates [19, 20] can exploit information about the radiance field but do not make use of coherence. Even Metropolis sampling [38] explores the neighborhood of a light path only to achieve variance reduction. In hybrid approaches, Monte Carlo techniques are often used to provide the ....

....values at selected points by directionally sampling the incident radiance field by ray casting. Spatial coherence of indirect irradiance is used to interpolate between samples based on gradient information computed from the sampled illumination. Special 3D and 5D data structures have been used in [16, 2, 20] for storing illumination samples obtained from photon tracing and bidirectional path tracing. These data structures are subsequently used to control Monte Carlo algorithms through importance sampling. Illumination samples from photon tracing have also been stored on individual surfaces in order ....

CHIU, K., AND SHIRLEY, P. The light volume: An aid to rendering complex environments. In Rendering Techniques '96 (Proceedings Seventh Eurographics Workshop on Rendering) (Porto, June 1996), Springer, pp. 1--10.

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K. Chiu, K. Zimmerman, and P. Shirley, "The light volume: an aid to rendering complex environments," in Eurographics Rendering Workshop, pp. 1--10, 1995.

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