Seminars at the Faculty of Informatics

Parameterization-Aware MIP-Mapping

The Faculty of Informatics is pleased to announce a seminar given by Scott Schaefer

DATE: Monday, September 3rd, 2012
PLACE: USI Università della Svizzera italiana, room A31, Red building (Via G. Buffi 13)
TIME: 15.30

ABSTRACT:
We present a method of generating mipmaps that takes into account the distortions due to the parameterization of a surface. Existing algorithms for generating mipmaps assume that the texture is isometrically mapped to the surface and ignore the actual surface parameterization. Our method correctly downsamples warped textures by assigning texels weights proportional to their area on a surface. We also provide a least-squares approach to filtering over these warped domains that takes into account the postfilter used by the GPU. Our method improves texture filtering for most models but only modifies mipmap generation, requires no modification of art assets or rasterization algorithms, and does not affect run-time performance.

BIO:
Scott Schaefer is an Associate Professor of Computer Science at Texas A&M University. He received a bachelor's degree in Computer Science/Mathematics from Trinity University in 2000 and an M.S. and PhD. in Computer Science from Rice University in 2003 and 2006 respectively. His research interests include geometry processing, curve and surface representations, and barycentric coordinates. Scott received the GŘnter Enderle Award in 2011 and an NSF CAREER Award in 2012.
http://faculty.cs.tamu.edu/schaefer/

HOST: Prof. Kai Hormann

URL 1: http://www.inf.usi.ch