Posters
https://diglib.eg.org:443/handle/10.2312/289
Eurographics 2011 - Posters2024-03-28T13:18:38ZUsing Visualisation Techniques and Molecular Dynamics to Study Atoms Diffusing in Glass
https://diglib.eg.org:443/handle/10.2312/EG2011.posters.047-048
Using Visualisation Techniques and Molecular Dynamics to Study Atoms Diffusing in Glass
Flikkema, E.; Zhou, Z.; Greaves, G. N.
R. Laramee and I. S. Lim
In this poster, virtual reality and visualisation techniques are used to interpret the output of Molecular Dynamics simulations. In particular, mixtures of sodium-disilicate and potassium-silicate are studied. In such systems, the silicon and oxygen atoms form a disordered network. The alkali atoms are relatively mobile and will diffuse through channels in the silica network. This behaviour is rationalised by considering the concept of accessible free volume .
2011-01-01T00:00:00ZMethodologies for Connected Structured Idealized Ice Crystal Growth Models
https://diglib.eg.org:443/handle/10.2312/EG2011.posters.049-050
Methodologies for Connected Structured Idealized Ice Crystal Growth Models
El-Alem, Yousef; Roberts, Jonathan C.
R. Laramee and I. S. Lim
Ice crystals are beautiful and intricate shapes. Our goal is to create ice crystal and other models with similar structure and render them in three-dimensions. Many of the current algorithms apply complex physics-based simulation algorithms to simulate the crystal growth, most are two-dimensional forms, and importantly they are made up of many disconnected parts (pixels); consequently they cannot be easily stored as a single model. However, our approach is to generate visually appealing 3d structures, rather than accurately model reality, that are geometrically connected together to form one connected model. These idealized structures can be easily stored, manipulated and included with other 3d-models and into virtual environments. This work is part of a larger project, thus in this poster presentation we merely describe several alternative methodologies to achieve this effect.
2011-01-01T00:00:00ZAccelerated 5D Ray Tree construction on the GPU
https://diglib.eg.org:443/handle/10.2312/EG2011.posters.045-046
Accelerated 5D Ray Tree construction on the GPU
Kammaje, Ravi P.; Mora, Benjamin
R. Laramee and I. S. Lim
Ray tracing random rays has been a challenge. Due to their reduced coherence, the normal methods of acceleration like packet tracing that make use of coherence of the rays do not work well. These random rays are encountered in global illumination methods. 5D ray classification, first introduced by Arvo and Kirk [AK87], can classify these rays into coherent groups. We introduce a method that builds a hierarchical structure identifying coherence in random rays very quickly using the increased processing power of the GPU.
2011-01-01T00:00:00ZImage-based Retexturing of Deformed Surfaces from a Single Image
https://diglib.eg.org:443/handle/10.2312/EG2011.posters.043-044
Image-based Retexturing of Deformed Surfaces from a Single Image
Hilsmann, A.; Schneider, D. C.; Eisert, P.
R. Laramee and I. S. Lim
Retexturing is the process of realistically replacing the texture of an object or surface in a given image by a new, synthetic one, such that texture distortion as well as lighting conditions of the original image are preserved. The key challenge is to separate the shading information from the actual local texture and to retrieve the texture distortion from an image without any knowledge of the underlying scene. In this paper, we introduce an approach for automatic retexturing that models an image of a deformed regular texture as a combination of its deformed surface albedo, a shading map and additional high frequency details.
2011-01-01T00:00:00Z