Spatial image based lighting

ABSTRACT

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.

REFERENCES

• 1: Paul Debevec, Rendering synthetic objects into real scenes: bridging traditional and image-based graphics with global illumination and high dynamic range photography, Proceedings of the 25th annual conference on Computer graphics and interactive techniques, p.189-198, July 1998 [doi>10.1145/280814.280864]
• 2: Pronk, J. 2006. Spatially Variant Real World Light for Computer Graphics. Honours thesis, University of New South Wales.
• 3: J. Unger , A. Wenger , T. Hawkins , A. Gardner , P. Debevec, Capturing and rendering with incident light fields, Proceedings of the 14th Eurographics workshop on Rendering, June 25-27, 2003, Leuven, Belgium