Radiosity redistribution for dynamic environments
| Autor: | D.W. George, Donald P. Greenberg, François X. Sillion |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
Geometrical optics
Computer science business.industry ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Radiosity (computer graphics) Computational geometry Computer Graphics and Computer-Aided Design Image synthesis Computer graphics Position (vector) Computer vision Artificial intelligence business Software Energy (signal processing) ComputingMethodologies_COMPUTERGRAPHICS |
| Zdroj: | IEEE Computer Graphics and Applications. 10:26-34 |
| ISSN: | 0272-1716 |
| DOI: | 10.1109/38.56296 |
| Popis: | The radiosity algorithm is extended to dynamic environments, providing global-illumination simulations to scenes that are modified interactively. The illumination effects introduced by a change in position, shape, or attributes of any object in the scene are computed very rapidly by redistributing the energy already exchanged between objects. Corrections are made by shooting positive and negative energy, accounting for increased illumination and the creation of shadows. Object coherence is used to minimize computation, and progressive-refinement techniques are used to accelerate convergence. The extended algorithm yields excellent approximations to the exact solutions at interactive speeds. > |
| Databáze: | OpenAIRE |
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