Fast Multi-View Rendering for Real-Time Applications

Johannes Unterguggenberger, Bernhard Kerbl, Markus Steinberger, Dieter Schmalstieg, Michael Wimmer
Fast Multi-View Rendering for Real-Time Applications
In Eurographics Symposium on Parallel Graphics and Visualization, pages 13-23. May 2020.
[paper]

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Abstract

Efficient rendering of multiple views can be a critical performance factor for real-time rendering applications. Generating more than one view multiplies the amount of rendered geometry, which can cause a huge performance impact. Minimizing that impact has been a target of previous research and GPU manufacturers, who have started to equip devices with dedicated acceleration units. However, vendor-specific acceleration is not the only option to increase multi-view rendering (MVR) performance. Available graphics API features, shader stages and optimizations can be exploited for improved MVR performance, while generally offering more versatile pipeline configurations, including the preservation of custom tessellation and geometry shaders. In this paper, we present an exhaustive evaluation of MVR pipelines available on modern GPUs. We provide a detailed analysis of previous techniques, hardware-accelerated MVR and propose a novel method, leading to the creation of an MVR catalogue. Our analyses cover three distinct applications to help gain clarity on overall MVR performance characteristics. Our interpretation of the observed results provides a guideline for selecting the most appropriate one for various use cases on different GPU architectures.

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BibTeX

@inproceedings{unterguggenberger-2020-fmvr,
  title =      "Fast Multi-View Rendering for Real-Time Applications",
  author =     "Johannes Unterguggenberger and Bernhard Kerbl and Markus
               Steinberger and Dieter Schmalstieg and Michael Wimmer",
  year =       "2020",
  abstract =   "Efficient rendering of multiple views can be a critical
               performance factor for real-time rendering applications.
               Generating more than one view multiplies the amount of
               rendered geometry, which can cause a huge performance
               impact. Minimizing that impact has been a target of previous
               research and GPU manufacturers, who have started to equip
               devices with dedicated acceleration units. However,
               vendor-specific acceleration is not the only option to
               increase multi-view rendering (MVR) performance. Available
               graphics API features, shader stages and optimizations can
               be exploited for improved MVR performance, while generally
               offering more versatile pipeline configurations, including
               the preservation of custom tessellation and geometry
               shaders. In this paper, we present an exhaustive evaluation
               of MVR pipelines available on modern GPUs. We provide a
               detailed analysis of previous techniques,
               hardware-accelerated MVR and propose a novel method, leading
               to the creation of an MVR catalogue. Our analyses cover
               three distinct applications to help gain clarity on overall
               MVR performance characteristics. Our interpretation of the
               observed results provides a guideline for selecting the most
               appropriate one for various use cases on different GPU
               architectures.",
  month =      may,
  booktitle =  "Eurographics Symposium on Parallel Graphics and
               Visualization",
  event =      "EGPGV 2020",
  pages =      "13--23",
  keywords =   "Real-Time Rendering, Rasterization, Multi-View,
               OVR_multiview, Geometry Shader, Evaluation",
  URL =        "https://www.cg.tuwien.ac.at/research/publications/2020/unterguggenberger-2020-fmvr/",
}