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Um algoritmo rápido para iluminação volumétrica

Ricardo B. V. LeitàoReynaldo P. FagundesFábio José AyresEduardo Toledo SantosMarcelo Knorich Zuffo

Direct Volume Rendering algorithms are very important tools in the analysis of volumetric data in scientific visualization applications. Volume Shading is a critical step regarding the computational cost of these algortims. This paper presents a fast algorthm for volume shading. The proposed technique is based on decompositing the illumination equation into a sum of functions that can be pre-computed in look-up tables. Preliminary results showed the new algorithm is about six times faster than the conventional method.

http://sibgrapi.sid.inpe.br/rep-/dpi.inpe.br/ambro/1998/05.06.15.34

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