TY  - JOUR
T1  - Effective Bounding Volumes for Monte Carlo Direct Lighting
AU - , Chung-Ming Wang AU - , Yuan-Yu Tsai 
JO  - Asian Journal of Information Technology
VL  - 3
IS  - 10
SP  - 898
EP  - 906
PY  - 2004
DA  - 2001/08/19
SN  - 1682-3915
DO  - ajit.2004.898.906
UR  - https://makhillpublications.co/view-article.php?doi=ajit.2004.898.906
KW  - 
AB  - Bounding volumes are usually employed to accelerate computing for complex geometries. In this paper, we present a technique to derive a tunable bounding volume for an elliptic paraboloid, given a parameter related to the tightness. Each bounding volume thus developed is sufficiently tight to the original elliptic paraboloid under a user`s control. This tunable feature helps us selecting the most suitable bounding volume. It also contributes to achieve a balance between the computing efficiency and inherent overheads for bounding volumes. We implemented our technique in Monte Carlo applications where an elliptical paraboloid is considered as a luminaire for direct illumination and global illumination calculations. Experimental results verify the effectiveness of our technique.
ER  -