"Interactive Editing and Modelling of Bidirectional Texture Functions"

Jan Kautz, 14th March 2008, 2-3pm Room 1.10, Kilburn Building, The University of Manchester
An Access Grid presentation in conjunction with vizNET and the ACM SIGGRAPH University of Manchester Professional Chapter

The event will be broadcast globally through Access Grid

Abstract

While measured Bidirectional Texture Functions (BTFs) enable impressive realism in material appearance, they offer little control, which limits their use for content creation. In this work, we interactively manipulate BTFs and create new BTFs from flat textures. We present an out-of-core approach to manage the size of BTFs and introduce new editing operations that modify the appearance of a material. These tools achieve their full potential when selectively applied to subsets of the BTF through the use of new selection operators. We further analyse the use of our editing operators for the modification of important visual characteristics such as highlights, roughness, and fuzziness. Results compare favourably to the direct alteration of micro-geometry and reflectances of ground-truth synthetic data.