I. Martin, X. Pueyo, and D. Tost. A two-pass hardware-based method for hierarchical radiosity. Computer Graphics Forum, 17(3):159--164, Sep. 1998.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....in the local pass to adaptively reconstruct the illumination function at the pixel level, trying to minimize the number of computations while keeping a high image quality. The pixels could be either replicated from the previous frame, interpolated between two key frames or actually recomputed. In [23] a two pass radiosity algorithm for static scenes has been proposed. This method allows an adaptive reconstruction step, which computes pixel intensities either through an actual gathering process or by simple interpolation. This strategy, which fits the requirements explained above, will be ....

....global pass fails at detecting small changes that may be perceptually noticeable. Thus, the local pass may need to recompute some energy transfer at higher image precision level. As exposed above, the method is conceived as an extension of the two pass method presented in the background section [23]. This method produces high quality radiosity images and it stores the results as textures, which are extended to the temporal dimension. Thus, the hierarchical structure computed to represent an animation sequence is made up of nodes that contain a space time representation of the radiosity ....

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I. Martin, X. Pueyo, and D. Tost, "A two-pass hardware-based method for hierarchical radiosity," Computer Graphics Journal (Proc. Eurographics '98), vol. 17, pp. C159--C164, September 1998. 35

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I. Martin, X. Pueyo, and D. Tost. A two-pass hardware-based method for hierarchical radiosity. Computer Graphics Forum, 17(3):159--164, Sep. 1998.

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