An Adaptive Sampling Approach for Caustics Rendering

• Main Authors: Yong-Chin Chen, 陳永欽
• Other Authors: Wen-Kai Tai
• Format: Others
• Language: en_US
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/v38b3g

碩士 === 國立東華大學 === 資訊工程學系 === 95 === Caustics is a natural phenomenon gathered when the light goes through the refractions or the reflexions. We usually use the ray-tracing to trace where the photons are located when simulating the phenomenon of caustics and take actions for each of photon. In this thesis, we count the ray-surface intersection in the image space for decreasing the cost of the intersection. Also, instead of using uniform sampling, we adaptively sample photons when necessary based on proposed assumptions. By our ways, it is completely effective and easy to use less sampling but present similar results to that of higher sampling.