Yu, IS and Cox, A and Kim, MH and Ritschel, T and Grosch, T and Dachsbacher, C and Kautz, J (2009) Perceptual Influence of Approximate Visibility in Indirect Illumination. ACM T APPL PERCEPT , 6 (4) , Article 24. 10.1145/1609967.1609971.
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Abstract
In this article we evaluate the use of approximate visibility for efficient global illumination. Traditionally, accurate visibility is used in light transport. However, the indirect illumination we perceive on a daily basis is rarely of high-frequency nature, as the most significant aspect of light transport in real-world scenes is diffuse, and thus displays a smooth gradation. This raises the question of whether accurate visibility is perceptually necessary in this case. To answer this question, we conduct a psychophysical study on the perceptual influence of approximate visibility on indirect illumination. This study reveals that accurate visibility is not required and that certain approximations may be introduced.
| Type: | Article |
|---|---|
| Title: | Perceptual Influence of Approximate Visibility in Indirect Illumination |
| DOI: | 10.1145/1609967.1609971 |
| Keywords: | Algorithms, Global illumination, perception, visibility, PRECOMPUTED RADIANCE TRANSFER, GLOBAL ILLUMINATION, COMPUTATION, EFFICIENT |
| UCL classification: | UCL > School of BEAMS > Faculty of Engineering Science > Computer Science |
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