Practical Parallel Rendering of Detailed Neuron Simulations (English)

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Parallel rendering of large polygonal models with transparency is challenging due to the need for alpha-correct blending and compositing, which is costly for very large models with high depth complexity and spatial overlap. In this paper we compare the performance of raster-based rendering methods on mesh models of neurons using two applications, one of which is specifically tailored to the neuroscience application domain, the other a general purpose visualization tool with domain specific additions. The first implements both sort-first and sort-last and uses a scene graph style traversal to cull objects, and dual depth peeling for order independent transparency, whilst the other uses a simpler brute force data-parallel approach with sort last composition. The advantages and trade offs of these approaches are discussed. We present the optimized algorithms needed to achieve interactive frame rates for a non-trivial, real-world parallel rendering scenario. We show that a generic data visualization application can provide competitive performance when optimizing its rendering pipeline, with some loss of capability over an optimized domain-specific application.

Table of contents conference proceedings

The tables of contents are generated automatically and are based on the data records of the individual contributions available in the index of the TIB portal. The display of the Tables of Contents may therefore be incomplete.

Scalable Parallel Feature Extraction and Tracking for Large Time-varying 3D Volume Data
Wang, Yang / Yu, Hongfeng / Ma, Kwan-Liu | 2013
Rendering Molecular Surfaces using Order-Independent Transparency
Kauker, Daniel / Krone, Michael / Panagiotidis, Alexandros / Reina, Guido / Ertl, Thomas | 2013
VtkSMP: Task-based Parallel Operators for VTK Filters
Ettinger, Mathias / Broquedis, F. / Gautier, T. / Ploix, S. / Raffin, Bruno | 2013
Image-parallel Ray Tracing using OpenGL Interception
Brownlee, Carson / Ize, Thiago / Hansen, Charles D. | 2013
Practical Parallel Rendering of Detailed Neuron Simulations
Hernando, Juan B. / Biddiscombe, John / Bohara, Bidur / Eilemann, Stefan / Schürmann, Felix | 2013
Scalable Seams for Gigapixel Panoramas
Philip, Sujin / Summa, Brian / Tierny, Julien / Bremer, Peer-Timo / Pascucci, Valerio | 2013
Analysis of Cache Behavior and Performance of Different BVH Memory Layouts for Tracing Incoherent Rays
Wodniok, Dominik / Schulz, Andre / Widmer, Sven / Goesele, Michael | 2013
GPU Acceleration of Particle Advection Workloads in a Parallel, Distributed Memory Setting
Camp, David / Krishnan, Hari / Pugmire, David / Garth, Christoph / Johnson, Ian / Bethel, E. Wes / Joy, Kenneth I. / Childs, Hank | 2013
In Situ Pathtube Visualization with Explorable Images
Ye, Yucong / Miller, Robert / Ma, Kwan-Liu | 2013
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