For some reason I thought this was about simulating the fabric in a physical sense. Having watched the videos from the supplemental material (downloadable from

For some reason I thought this was about simulating the fabric in a physical sense. Having watched the videos from the supplemental material (downloadable from the SIGGRAPH paper page) it appears to be about "just" rendering. The fabric does look nice though for some reason they chose very shiny fabrics for their video.