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Intersection fields for interactive global illumination

delete2005-08-31
delete3
PRE
AI
任
任重 (Zhong Ren)
W
Wei Hua
陈璐 cover
陈璐 (Lu Chen)
H
Hujun Bao
DOI：10.1007/s00371-005-0329-8delete
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Abstract

Abstract

En 中文
We present a novel visibility representation, Intersection Field (i-Field), to compute global illumination in interactive rates. The i-Field provides fast visibility and line-scene intersection queries. We factorize the direct illumination into local irradiance and visibility ratio. The latter is efficiently evaluated by querying the i-Field. The indirect illumination is simulated by photon tracing, which is also accelerated by the i-Field. By quickly detecting invalid portions, our approach can handle highly dynamic scenes, allowing light sources and scene geometries to be manipulated at interactive rates through rigid transformations and free deformations.
Keywords:
global illumination
shading
hardware
photon tracing
global line

Journal

Visual Computer cover
Visual Computer
IF:
2.9
Papers:
4.6K
Citations:
6.5K

Organization

No organization information available