研究目的
To offer a first comprehensive survey of MCMC algorithms for light transport simulation, categorizing existing algorithms by their objectives and properties, and discussing their strengths and weaknesses.
研究成果
The paper concludes by summarizing the discussed MCMC-based light transport algorithms and identifying open problems such as global exploration, temporal instability, and the lack of reliable error metrics. It suggests directions for future research to develop a universal light transport method based on MCMC.
研究不足
The paper does not explicitly mention limitations but focuses on surveying existing methods and discussing potential improvements.