Particle-based Visualization of Large Cosmological Datasets
نویسندگان
چکیده
Large quantities of simulated cosmological particle data cause considerable problems when it comes to real-time visualization. In this paper, an efficient approach to solve visualization problems on a single desktop workstation is considered. The approach proposed in this paper consists of two phases: a data preprocessing and its visualization. During the preprocessing, the cosmological data is hierarchically organized. Before rendering, the data is streamed from the disk to the memory. For the visualization, the culling techniques such as view frustum culling and level-of-detail (LOD) are applied. In most cases, the real-time visualization of large cosmological particle datasets is achieved.
منابع مشابه
Visualizing Particle-Based Simulation Datasets on the Desktop
We present an approach to rendering large, time-varying particle-based simulation datasets using programmable graphics hardware on desktop computer systems. Particle methods are used to model a wide range of complex phenomena, and effective visualization of the resulting data requires communicating subtle changes in the three-dimensional structure, spatial organization, and qualitative trends w...
متن کاملImposters for Particle-Based Datasets
Many particle-based datasets produced by molecular dynamics simulations consist of millions of particles. Current visualization techniques are incapable of representing those large-scale datasets consistently across all scales. They either produce overlysmooth representation or are prone to aliasing due to under-sampling. This work introduces a technique that captures the micro-scale surface fe...
متن کاملTerapixel Imaging of Cosmological Simulations
The increasing size of cosmological simulations has led to the need for new visualization techniques. We focus on Smoothed Particle Hydrodynamical (SPH) simulations run with the GADGET code and describe methods for visually accessing the entire simulation at full resolution. The simulation snapshots are rastered and processed on supercomputers into images that are ready to be accessed through a...
متن کاملAdvanced Visualization of Large Datasets for Discrete Element Method Simulations
State-of-the-art Discrete Element Method (DEM) simulations of granular flows produce large datasets that contain a wealth of information describing the time-dependent physical state of the particulate medium. To extract this information, both comprehensive and efficient post-processing methods are essential. Special attention must be paid to the interactive visualization of these large hybrid d...
متن کاملLarge-Scale Parallel Visualization of Particle Datasets using Point Sprites
Massive particle-based datasets can be efficiently rendered using point sprites. Among other advantages, the method is efficient in its use of memory, preserves the dynamic range of the simulations, and provides excellent image quality. Preliminary results of large-scale parallel rendering of particle data sets using point sprites are presented in this poster. Performance and scalability are ev...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2011