Technical Papers
Reflectance: Modeling, Capturing, Renderings
Wednesday, 13 August 2:00 PM - 3:30 PM | Vancouver Convention Centre, East Building, Exhibit Hall A Session Chair: Szymon Rusinkiewicz, Princeton University
genBRDF: Discovering New Analytic BRDFs With Genetic Programming
This paper employs a large-scale genetic programming approach to discover new analytic BRDFs. Results include several mathematical expressions not previously studied in the BRDF literature that give superior fits to measured data.
Jason Lawrence
University of Virginia
Pieter Peers
College of William & Mary
Adam Brady
University of Virginia
Westley Weimer
University of Virginia
Discrete Stochastic Microfacet Models
A modified microfacet BRDF that simulates effects collectively referred to as "glitter" or "sparkle" by treating a surface as being covered by a finite number of point scatterers. It is readily implemented in standard rendering systems and converges back to the smooth case in the limit.
Wenzel Jakob
ETH Zürich
Steve Marschner
Cornell University
Ling-Qi Yan
University of California, Berkeley
Milos Hasan
University of California, Berkeley
Ravi Ramamoorthi
University of California, Berkeley
Jason Lawrence
University of Virginia
Rendering Glints on High-Resolution Normal-Mapped Specular Surfaces
Rendering a complex specular surface under sharp lighting is hopeless using naive pixel sampling: the energy is concentrated in tiny highlights that are missed by uniform sampling. This method computes the true distribution of normals on a surface patch seen through a single pixel, which can be highly complicated.
Ling-Qi Yan
University of California, Berkeley
Milos Hasan
Autodesk, Inc.
Wenzel Jakob
ETH Zürich
Jason Lawrence
University of Virginia
Steve Marschner
Cornell University
Ravi Ramamoorthi
University of California, Berkeley
Reflectance Scanning: Estimating Shading Frame and BRDF with Generalized Linear Light Sources
A generalized linear light-source solution to estimating both local shading frame and surface reflectance of a planar spatially varying material sample.
Guojun Chen
Tianjin University
Yue Dong
Microsoft Research Asia
Pieter Peers
College Of William & Mary
Jiawan Zhang
Tianjin University
Xin Tong
Microsoft Research Asia
A Comprehensive Framework for Rendering Layered Materials
This paper presents a general and practical method for computing BSDFs of layered materials. The approach synthesizes BSDFs for a great variety of layered structures, while correctly accounting for internal scattering. The paper demonstrates the model using an interactive visual design tool that enables easy exploration of the space of layered materials.
Wenzel Jakob
ETH Zürich
Eugene D'Eon
Weta Digital
Otto Jakob
Atelier Otto Jakob
Steve Marschner
Cornell University