After Sebastian Werner introduced our new shading model for iridescent scratches at SIGGRAPH Asia last year, Zdravko Velinov will be presenting the real-time version at Eurographics 2018 in Delft. More details here:
Zdravko Velinov*, Sebastian Werner*, Matthias B. Hullin (* joint first authors)
Computer Graphics Forum 37 (2) (Proc. EUROGRAPHICS), 2018.
In this paper, we develop closed-form solutions for illuminating our iridescent scratch model with spherical and polygonal area light sources, bringing this effect within reach of real-time applications for the first time.