An Interleaved Parallel Volume Renderer With PC-clusters (English)

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Parallel Volume Rendering has been realized using various load distribution methods that subdivide either the screen, called image-space partitioning, or the volume dataset, called object-space partitioning. The major advantages of image-space partitioing are load balancing and low communication overhead, but processors require access to the full volume in order to render the volume with arbitrary views without frequent data redistributions. Subdividing the volume, on the other hand, provides storage scalability as more processors are added, but requires image compositing and thus higher communication bandwidth for producing the final image. In this paper, we present a parallel volume rendering algorithm that combines the benefits of both image-space and object-space partition schemes based on the idea of pixel and volume interleaving. We first subdivide the processors into groups. Each group is responsible for rendering a portion of the volume. Inside of a group, every member interleaves the data samples of the volume and the pixels of the screen. Interleaving the data provides storage scalability and interleaving the pixels reduces communication overhead. Our hybrid object- and image-space partitioning scheme was able to reduce the image compositing cost, incur in low communication overhead and balance rendering workload at the expense of image quality. Experiments on a PC-cluster demonstrate encouraging results.

Table of contents conference proceedings

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"Kilauea" - Parallel Global Illumination Renderer
Kato, Toshi / Saito, Jun | 2002
Mining the Human Genome using Virtual Reality
Stolk, Bram / Abdoelrahman, Faizal / Koning, Anton / Wielinga, Paul | 2002
Approach for software development of parallel real-time VE systems on heterogenous clusters
Winkelholz, C. / Alexander, T. | 2002
A Multi-thread Safe Foundation for Scene Graphs and its Extension to Clusters
Voß, G. / Behr, J. / Reiners, D. / Roth, M. | 2002
Design and Implementation of A Large-scale Hybrid Distributed Graphics System
Yang, Jian / Shi, Jiaoying / Jin, Zhefan / Zhang, Hui | 2002
An Interleaved Parallel Volume Renderer With PC-clusters
Antonio Garcia / Shen, Han-Wei | 2002
The Parallelization of the Perspective Shear-Warp Volume Rendering Algorithm
Schulze, Jürgen P. / Lang, Ulrich | 2002
Distributed rendering of interactive soft shadows
Isard, M. / Shand, M. / Heirich, A. | 2002
Interactive Ray Tracing of Time Varying Data
Reinhard, Erik / Hansen, Charles / Parker, Steve | 2002
Interactive Headlight Simulation - A Case Study of Interactive Distributed Ray Tracing -
Benthin, Carsten / Dahmen, Tim / Wald, Ingo / Slusallek, Philipp | 2002
Out-Of-Core Sort-First Parallel Rendering for Cluster-Based Tiled Displays
Correa, Wagner T. / Klosowski, James T. / Silva, Claudio T. | 2002
An Out-of-core Method for Computing Connectivities of Large Unstructured Meshes
Ueng, Shyh-Kuang / Sikorski, K. | 2002
Physical cloth simulation on a PC cluster
Zara, F. / Faure, F. / Vincent, J-M. | 2002
Efficient Parallel Implementations for Surface Subdivision
Padrón, E. J. / Amor, M. / Bóo, M. / Doallo, R. | 2002
An Efficient System for Collaboration in Tele-Immersive Environments
Jensen, N. / Olbrich, S. / Pralle, H. / Raasch, S. | 2002
Parallel Performance Optimization of Large-Scale Unstructured Data Visualization for the Earth Simulator
Chen, L. / Fujishiro, I. / Nakajima, K. | 2002
Parallel Performance Optimization for Large-Scale Unstructured Data Visualization for the Earth Simulator
Chen, L. / Fujishiro, I. / Nakajima, K. / ACM | 2002