Error and complexity of random walk Monte Carlo radiosity
نویسندگان
چکیده
منابع مشابه
Error and Complexity of Random Walk Monte Carlo Radiosity
In this paper, we study the error and complexity of the discrete random walk Monte Carlo technique for Radiosity, both the shooting and gathering methods. We show that the shooting method exhibits a lower complexity than the gathering one, and under some constraints, it has a linear complexity. This is an improvement over a previous result that pointed to an 2(n log n) complexity. We give and c...
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The time complexity of Monte Carlo radiosity is discussed, and a proof is given that the expected number of rays required to produce a statistical radiosity solution below a speci ed variance for N zones is O(N ). A satisfactory solution is de ned to be one in which the variance of radiance estimates for each zone is below a prede ned threshold. The proof assumes that the radiance is bounded, a...
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The problem of global illumination in computer graphics is described by a second kind Fredholm integral equation Due to the com plexity of this equation Monte Carlo methods provide an interesting tool for approximating solutions to this transport equation For the case of the radiosity equation we present the deterministic method of quasi random walks This method very e ciently uses low discrepa...
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Hierarchical radiosity and Monte Carlo radiosity are branches of radiosity research that focus on complementary problems. The synthesis of both families of radiosity algorithms has however received little attention until now. In this paper, a procedure is presented that bridges the gap. It allows any proposed hierarchical refinement strategy to be investigated in the context of an arbitrary dis...
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ژورنال
عنوان ژورنال: IEEE Transactions on Visualization and Computer Graphics
سال: 1997
ISSN: 1077-2626
DOI: 10.1109/2945.582339