Dr. Bernd Eberhardt
The draping of textiles over arbitrary obstacles is calculated using coupled particle systems. This project is closely related to the project on physically based modeling 4.2 . Textiles are viewed as a set of coupled masspoints. The trajectories of these are calculated via Euler-Lagrange differential equations.
Figure 8:
A model with poncho.
The textile model has been extended to different repelling and stretching energies, to a physical model for knitted fabrics using experimental data on stretching and we have included more adequate solvers for the differential equations. For details see also 4.2
Dipl. Inf. Michael Meißner, Dr. Bernd Eberhardt
The direct visualization of data of a knitting machine using Open Inventor has a growing demand in industry. This project in cooperation with Stoll will satisfy this demand. Taking the WKT-Data of the Stoll knitting machines, we calculate the paths of the textile fibres.
Using PaSi we want to extend the visualization to a more realistic appearance. A new approach calculating the knitting process enables the definition of a set of bounding elements to be used in PaSi
Dr. Eduard Gröller (Technische Universität Wien), Dr. René Rau
The modeling and rendering of textile materials has already been investigated in detail in the computer graphics literature. Modeling the 3D microstructure of textiles as volume data sets allows a more realistic image generation. Textiles, e.g., knitwear, are typically characterized by highly repetitive structures. These repetitive features enable time and memory efficient rendering through object instancing even when using the ray-tracing technique. This work concentrates on the rendering of more general textiles whose macrostructures are defined by free-form surfaces. We show how object instancing and tracing curved rays through object space efficiently produce realistic looking images. Concerning realism our approach of approximating the 3D microstructure of textiles with volume data sets compares favorably with previous techniques which used the mapping of 2D textures onto textile surfaces. This is especially true when a close-up inspection of synthetic textiles is required.
Figure 10:
Some visualization results
For detailes see [16
Miguel Encarnação
