139,177 research outputs found
A hybrid hair model using three dimensional fuzzy textures
Cataloged from PDF version of article.Human hair modeling and rendering have always been a challenging topic in
computer graphics. The techniques for human hair modeling consist of explicit
geometric models as well as volume density models. Recently, hybrid cluster
models have also been successful in this subject. In this study, we present a
novel three dimensional texture model called 3D Fuzzy Textures and algorithms
to generate them. Then, we use the developed model along with a cluster model
to give human hair complex hairstyles such as curly and wavy styles. Our model
requires little user effort to model curly and wavy hair styles. With this study,
we aim at eliminating the drawbacks of the volume density model and the cluster
hair model with 3D fuzzy textures. A three dimensional cylindrical texture mapping
function is introduced for mapping purposes. Current generation graphics
hardware is utilized in the design of rendering system enabling high performance
rendering.Aran, Medeni ErolM.S
Streaming narrow-band algorithm: interactive computation and visualization of level sets
Journal ArticleAbstract-Deformable isosurfaces, implemented with level-set methods, have demonstrated a great potential in visualization and computer graphics for applications such as segmentation, surface processing, and physically-based modeling. Their usefulness has been limited, however, by their high computational cost and reliance on significant parameter tuning. This paper presents a solution to these challenges by describing graphics processor (GPU) based algorithms for solving and visualizing level-set solutions at interactive rates. The proposed solution is based on a new, streaming implementation of the narrow-band algorithm. The new algorithm packs the level-set isosurface data into 2D texture memory via a multidimensional virtual memory system. As the level set moves, this texturebased representation is dynamically updated via a novel GPU-to-CPU message passing scheme. By integrating the level-set solver with a real-time volume renderer, a user can visualize and intuitively steer the level-set surface as it evolves. We demonstrate the capabilities of this technology for interactive volume segmentation and visualization
Recommended from our members
Volume Modeling for Rapid Prototyping
The expanding workspace of Rapid Prototyping will draw on the new developments
in geometric modeling. Volume modeling has substantial advantages over other modeling
schemes to meet the emerging requirements of Rapid Prototyping technology. It provides us with
a new approach to design complex geometry and topology. The integration of the volume
modeling and Rapid Prototyping technology will help us to fully exploit RP's ability to fabricate
objects with complex structures. This paper addresses our research and practice in a volume
modeling system toward Rapid Prototyping. Novel techniques in volumetric data manipulation,
NURBS volume models and triangular facet generation over solid models are presented.
Computer models designed by this system and their corresponding DTM products are also
shown atthe end of this paper.Mechanical Engineerin
A bibliometric analysis of the Journal of Molecular Graphics and Modelling
This paper reviews the articles published in Volumes 2-24 of the Journal of Molecular Graphics and Modelling (formerly the Journal of Molecular Graphics), focusing on the changes that have occurred in the subject over the years, and on the most productive and most cited authors and institutions. The most cited papers are those describing systems or algorithms, but the proportion of these types of article is decreasing as more applications of molecular graphics and molecular modelling are reported
Animating Human Muscle Structure
Graphical simulations of human muscle motion and deformation are of great interest to
medical education. In this article, the authors present a technique for simulating muscle
deformations by combining physically and geometrically based computations to reduce
computation cost and produce fast, accurate simulations
- …