“Spatial image based lighting” by Pronk

  • ©Jeremy Pronk

  • ©Jeremy Pronk




    Spatial image based lighting



    When compositing computer generated imagery into photographed scenes, image based lighting (IBL) [Debevec 1998] is used so that synthetic and real objects are consistently illuminated. Traditional IBL takes light captured from a single point in space however light varies spatially in many scenes. Unger et al. [2003] captured a light field for lighting, but the acquisition procedures were not practical for typical scenes. I present a practical IBL method for rendering scenes with spatially variant light.


    1. Debevec, P. 1998. Rendering synthetic objects into real scenes: bridging traditional and image-based graphics with global illumination and high dynamic range photography. In SIGGRAPH ’98: Proceedings of the 25th annual conference on Computer graphics and interactive techniques, ACM Press, New York, NY, USA, 189–198.
    2. Pronk, J. 2006. Spatially Variant Real World Light for Computer Graphics. Honours thesis, University of New South Wales.
    3. Unger, J., Wenger, A., Hawkins, T., Gardner, A., and Debevec, P. 2003. Capturing and rendering with incident light fields. In EGRW ’03: Proceedings of the 14th Eurographics workshop on Rendering, Eurographics Association, Aire-la-Ville, Switzerland, Switzerland, 141–149.

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