SPEAKER: Kenshi Takayama, University of Tokyo 

TITLE: Volumetric Modeling of Internal Textures and Structures

ABSTRACT:
Volumetric modeling is important for various CG applications. For
example, a volumetric model would allow users to cut virtual objects
and see their cross-sections, which would be useful for entertainment
and educational purposes. Volumetric information is also essential for
realistic rendering of natural 3D objects that are highly translucent,
especially food materials. Despite its importance, volumetric modeling
remains still a challenge, mainly because it is difficult to measure
the real-world volume data, and also because it is difficult to create
and edit volume data manually. In this talk, I present two techniques
that make volumetric modeling easier. The first one allows to model
objects with relatively simple repetitive internal textures, such as
carrots, by placing patches of anisotropic solid textures along
user-defined orientation field. The second one allows to model objects
with more global and distinct structures, such as tomatoes, by
representing such structures as a set of colored 3D surfaces
explicitly. Finally, I'd like to briefly mention the future research
direction and my ongoing work.