Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"Radiosity"”.
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Perceptual refinement for hierarchical radiosity
… a performance improvement with hierarchical radiosity. Hierarchical radiosity is a physically based rendering algorithm and hence makes no attempt to optimize computation for human perception. We used a model of the edge enhancement properties of the human visual system to produce a …
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Perspective-Driven Radiosity on Graphics Hardware
Radiosity is a global illumination algorithm used by artists, architects, and engineers for its realistic simulation of lighting. Since the illumination model is global, complexity and run time grow as larger environments are provided. Algorithms exist which generate an incremental result and …
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High fidelity radiosity rendering at interactive rates
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1996.
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IMPROVING GLOBAL ILLUMINATION WITH A-BUFFER TECHNIQUE
Two of the main issues m radiosity generated images are efficient form factor computation and proper mesh generation. Although hemicube algorithm remains a simple and fast method for radiosity form factor computation, its simple sampling scheme for the hemicube pixels causes unacceptable accuracy …
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Thermal-infrared radiosity and heat-diffusion model for estimating sub-pixel radiant temperatures over the course of a day
… This dissertation is devoted to thermal-infrared radiosity and a heat-diffusion model used for predicting effective emissivity spectra and radiant temperatures for rough natural surfaces, which allows one to estimate discrepancies between effective and actual values. Computer model results are …
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Parallel hierarchical global illumination
… method, such as backward ray tracing or radiosity, we have chosen to solve the Rendering Equation by direct simulation of light transport from the light sources. This paper presents an algorithm that solves the Rendering Equation to any desired accuracy, and can be run in parallel on …
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Beugungssimulation ohne Rechenzeitexplosion: Die Methode der quantisierten Pyramidenstrahlen : ein neues Berechnungsverfahren für Raumakustik und Lärmimmissionsprognose ; Vergleiche, Ansätze, Lösungen
… to simulate the late reverberation, the radiosity method basing on the radiation interchange of pairs or surface patches. But, caused by their nature, the mean deficit of these geometrical and energetic methods is not to take wave effects as diffraction into account. But, with …
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GPU-Accelerated Point-Based Color Bleeding
… global illumination lighting techniques like Radiosity and Monte Carlo sampling are computationally expensive. This has prompted the development of the Point-Based Color Bleeding (PBCB) algorithm by Pixar in order to approximate complex indirect illumination while meeting the demands of movie …
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Distribution-independent hierarchical N-body methods
… molecular dynamics, fluid dynamics, radiosity methods in computer graphics and numerical complex analysis. Research efforts have focused on reducing the O(N[superscript]2) time per iteration required by the naive algorithm of computing each pairwise interaction. Widely respected among …
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Unstructured mesh - finite volume algorithms for swirling, turbulent, reacting flows
… effects are simulated through the use of the radiosity model. A series of simulation results are presented which show the capabilities of the methods in test cases ranging from simple heat transfer problems through to the simulation of two swirling jets in a three dimensional unstructured mesh.