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ACM Transactions on Graphics (TOG), Volume 23 Issue 4, October 2004

Editorial
John C. Hart
Pages: 929-929
DOI: 10.1145/1027411.1027412

Jump map-based interactive texture synthesis
Steve Zelinka, Michael Garland
Pages: 930-962
DOI: 10.1145/1027411.1027413

We present techniques for accelerated texture synthesis from example images. The key idea of our approach is to divide the task into two phases: analysis, and synthesis. During the analysis phase, which is performed once per sample texture, we...

Lighting sensitive display
Shree K. Nayar, Peter N. Belhumeur, Terry E. Boult
Pages: 963-979
DOI: 10.1145/1027411.1027414

Although display devices have been used for decades, they have functioned without taking into account the illumination of their environment. We present the concept of a lighting sensitive display (LSD)---a display that measures the incident...

Combining 4- and 3-direction subdivision
Jörg Peters, Le-Jeng Shiue
Pages: 980-1003
DOI: 10.1145/1027411.1027415

4-3 direction subdivision combines quad and triangle meshes. On quad submeshes it applies a 4-direction alternative to Catmull-Clark subdivision and on triangle submeshes a modification of Loop's scheme. Remarkably, 4-3 surfaces can be...

A signal-processing framework for reflection
Ravi Ramamoorthi, Pat Hanrahan
Pages: 1004-1042
DOI: 10.1145/1027411.1027416

We present a signal-processing framework for analyzing the reflected light field from a homogeneous convex curved surface under distant illumination. This analysis is of theoretical interest in both graphics and vision and is also of practical...

On the support of recursive subdivision
Ioannis P. Ivrissimtzis, Malcolm A. Sabin, Neil A. Dodgson
Pages: 1043-1060
DOI: 10.1145/1027411.1027417

We study the support of subdivision schemes: that is, the region of the subdivision surface that is affected by the displacement of a single control point. Our main results cover the regular case, where the mesh induces a regular Euclidean...

Variational normal meshes
Ilja Friedel, Peter Schröder, Andrei Khodakovsky
Pages: 1061-1073
DOI: 10.1145/1027411.1027418

Hierarchical representations of surfaces have many advantages for digital geometry processing applications. <i>Normal meshes</i> are particularly attractive since their level-to-level displacements are in the local normal direction only....