Decoupled Shading for Real-time Heterogeneous Volume Illumination (Unknown language)

In: Computer Graphics Forum   ;  35 ,  3  ;  401-410  ;  2016
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  • Conference paper  /  Electronic Resource

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Existing real-time volume rendering techniques which support global illumination are limited in modeling distinct realistic appearances for classified volume data, which is a desired capability in many fields of study for illustration and education. Directly extending the emission-absorption volume integral with heterogeneous material shading becomes unaffordable for real-time applications because the high-frequency view-dependent global lighting needs to be evaluated per sample along the volume integral. In this paper, we present a decoupled shading algorithm for multi-material volume rendering that separates global incident lighting evaluation from per-sample material shading under multiple light sources. We show how the incident lighting calculation can be optimized through a sparse volume integration method. The quality, performance and usefulness of our new multi-material volume rendering method is demonstrated through several examples.

  • Title:
    Decoupled Shading for Real-time Heterogeneous Volume Illumination
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  • Published in:
    Computer Graphics Forum ; 35 ; 3 ; 401-410
  • Publisher:
    The Eurographics Association
  • Year of publication:
  • Size:
    10 pages
  • ISSN:
  • DOI:
  • Type of media:
    Conference paper
  • Type of material:
    Electronic Resource
  • Language:
    Unknown language
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