The Visual Computer

, Volume 31, Issue 6–8, pp 1011–1021 | Cite as

Simplification of meshes with digitized radiance

  • Kenneth VanhoeyEmail author
  • Basile Sauvage
  • Pierre Kraemer
  • Frédéric Larue
  • Jean-Michel Dischler
Original Article


View-dependent surface color of virtual objects can be represented by outgoing radiance of the surface. In this paper we tackle the processing of outgoing radiance stored as a vertex attribute of triangle meshes. Data resulting from an acquisition process can be very large and computationally intensive to render. We show that when reducing the global memory footprint of such acquired objects, smartly reducing the spatial resolution is an effective strategy for overall appearance preservation. Whereas state-of-the-art simplification processes only consider scalar or vectorial attributes, we conversely consider radiance functions defined on the surface for which we derive a metric. For this purpose, several tools are introduced like coherent radiance function interpolation, gradient computation, and distance measurements. Both synthetic and acquired examples illustrate the benefit and the relevance of this radiance-aware simplification process.


Digitized artifacts Surface light field Radiance  Mesh simplification Rendering 



We thank Éric Heitz for the early-stage experiments that led to this work and Olivier Génevaux for his technical assistance.

Supplementary material

371_2015_1124_MOESM1_ESM.pdf (2.7 mb)
Supplementary material 1 (pdf 2787 KB)

Supplementary material 2 (mpg 160630 KB)

371_2015_1124_MOESM3_ESM.pdf (16.8 mb)
Supplementary material 3 (pdf 17238 KB)


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Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • Kenneth Vanhoey
    • 1
    • 2
    Email author
  • Basile Sauvage
    • 1
  • Pierre Kraemer
    • 1
  • Frédéric Larue
    • 1
  • Jean-Michel Dischler
    • 1
  1. 1.ICubeUniversité de Strasbourg, CNRSStrasbourgFrance
  2. 2.InriaSophia-AntipolisFrance

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