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ACM Transactions on Graphics (TOG), Volume 24 Issue 1, January 2005

Feature-based surface parameterization and texture mapping
Eugene Zhang, Konstantin Mischaikow, Greg Turk
Pages: 1-27
DOI: 10.1145/1037957.1037958

Surface parameterization is necessary for many graphics tasks: texture-preserving simplification, remeshing, surface painting, and precomputation of solid textures. The stretch caused by a given parameterization determines the sampling rate on the...

On C2 triangle/quad subdivision
Scott Schaefer, Joe Warren
Pages: 28-36
DOI: 10.1145/1037957.1037959

In this article, we present a subdivision scheme for mixed triangle/quad meshes that is <i>C</i><sup>2</sup> everywhere except for isolated, extraordinary points. The rules that we describe are the same as Stam and Loop's scheme...

Simulating the dynamics of auroral phenomena
Gladimir V. G. Baranoski, Justin Wan, Jon G. Rokne, Ian Bell
Pages: 37-59
DOI: 10.1145/1037957.1037960

Simulating natural phenomena has always been a focal point for computer graphics research. Its importance goes beyond the production of appealing presentations, since research in this area can contribute to the scientific understanding of complex...

On the optimality of spectral compression of mesh data
Mirela Ben-Chen, Craig Gotsman
Pages: 60-80
DOI: 10.1145/1037957.1037961

Spectral compression of the geometry of triangle meshes achieves good results in practice, but there has been little or no theoretical support for the optimality of this compression. We show that, for certain classes of geometric mesh models,...

Stable but nondissipative water
Oh-Young Song, Hyuncheol Shin, Hyeong-Seok Ko
Pages: 81-97
DOI: 10.1145/1037957.1037962

This article presents a physically-based technique for simulating water. This work is motivated by the "stable fluids" method, developed by Stam [1999], to handle gaseous fluids. We extend this technique to water, which calls for the development...

A physically-based motion retargeting filter
Seyoon Tak, Hyeong-Seok Ko
Pages: 98-117
DOI: 10.1145/1037957.1037963

This article presents a novel constraint-based motion editing technique. On the basis of animator-specified kinematic and dynamic constraints, the method converts a given captured or animated motion to a physically plausible motion. In contrast to...

Perceptual photometric seamlessness in projection-based tiled displays
Aditi Majumder, Rick Stevens
Pages: 118-139
DOI: 10.1145/1037957.1037964

Arguably, the most vexing problem remaining for multi-projector displays is that of photometric (brightness) seamlessness within and across different projectors. Researchers have strived for <i>strict photometric uniformity</i> that...

Controllable smoke animation with guiding objects
Lin Shi, Yizhou Yu
Pages: 140-164
DOI: 10.1145/1037957.1037965

This article addresses the problem of controlling the density and dynamics of smoke (a gas phenomenon) so that the synthetic appearance of the smoke (gas) resembles a still or moving object. Both the smoke region and the target object are...

Adaptation of performed ballistic motion
Adnan Sulejmanpašić, Jovan Popović
Pages: 165-179
DOI: 10.1145/1037957.1037966

Adaptation of ballistic motion demands a technique that can make required adjustments in anticipation of flight periods when only some physically consistent changes are possible. This article describes a numerical procedure that adjusts a...