Many real-world surfaces are covered in fine scratches that diffract light in colorful ways. Our model seamlessly transitions between ray optics and wave optics to recreate this intricate effect.
Proc. Vision, Modeling and Visualization, Bayreuth, Germany, 2016.
A reflectance model for pile fabrics that you can "draw on" using your fingers, like velvet or Alcantara.
ACM Transactions on Graphics 30 (4) (Proc. SIGGRAPH), 2011.
Our take on this popular effect; to our knowledge, the most complete and most efficient model to date.