Gong, MinglunYang, Yee-HongM. Alexa and E. Galin2015-07-202015-07-2020041017-4656https://doi.org/10.2312/egs.20041000A novel sampling technique is presented, which can evenly sample all rays that pass through a rectangular surface. Different view directions are uniformly sampled based on the shape of a spiral. Projection positions are then sampled adaptively according to the view direction to provide a constant sampling rate. The experimental results show that our approach can faithfully represent shiny real objects with a reasonable number of samples.10.2312/egs.20041000