David S. Immel
ABSTRACT
A general radiosity method accounting for all interreflections of light between diffuse and nondiffuse surfaces in complex environments is introduced. As contrasted with previous radiosity methods, surfaces are no longer required to be perfectly diffuse reflectors and emitters. A complete, viewer independent description of the light leaving each surface in each direction is computed, allowing dynamic sequences of images to be rendered with little additional computation per image. Phenomena such as "reflection tracking", reflections following a moving observer across a specular surface are produced. Secondary light sources, such as the light from a spotlight reflecting off a mirror onto a wall are also accounted for.
- 1.Whitted, Turner, "An Improved Illumination the ACM, Vol. 23, No. 6, June I~980, pp. 34--~23 9. Google Scholar
Digital Library
- 2.Siegel, Robert and John R. Howell, Thermal Radi at i on Heat Transfer, Hem-~ sphere Publishing Corp., Washington DC., 1981.Google Scholar
- 3.Sparrow, E. M. and R. D. Cess, Radiation Heat Transfer, Hemisphere Publishing Corp., Washington DC., 1978.Google Scholar
- 4.Goral, Cindy M., Kenneth E. Torrance, Donald P. Greenberg, Bennet Battaile, "Mode}ing the Interaction of Light Between Diffuse Surfaces," ACM Computer Graphics (Proceedings 1984), pp. 213-222, Google ScholarDigital Library
- 5.Cohen, Michael r. and Donald P. Greenberg, "A Radiosity Solution for Complex Environments," ACM Computer Graphics (Proceedings 1985), pp. 31'40. Google ScholarDigital Library
- 6.Cohen, Michael F., Donald P. Greenberg, David S. Immel, Philip J. Brock, "An Efficient Radiosity Approach for Real istic Image Synthesis," IEEE Computer Graphics and Applications, March 1986.Google Scholar
- 7.Nishita, Tomoyuki, and ~ihachiro Nakamae, "Cont i nuous Tone Representation of Three-Dimensional Objects Taking Account of Shadows and Interreflection," ACM Computer Graph i cs ( Proceedings 1985), pp .~3{). Google ScholarDigital Library
- 8.Phong, Bui Tuong, Illumination for Computer Generated Images, Ph.D. Dissertation, University of Utah, 1973. Google ScholarDigital Library
- 9.Hornbeck, Robert W., Numeri cal Methods, Quantum Publishers, New York, NY, 1974, pp. 101-106.Google Scholar
Index Terms
- A radiosity method for non-diffuse environments
Recommendations
A radiosity method for non-diffuse environments
A general radiosity method accounting for all interreflections of light between diffuse and nondiffuse surfaces in complex environments is introduced. As contrasted with previous radiosity methods, surfaces are no longer required to be perfectly diffuse ...
Translucent Radiosity: Efficiently CombiningDiffuse Inter-Reflection andSubsurface Scattering
It is hard to efficiently model the light transport in scenes with translucent objects for interactive applications. The inter-reflection between objects and their environments and the subsurface scattering through the materials intertwine to produce ...
A general two-pass method integrating specular and diffuse reflection
SIGGRAPH '89: Proceedings of the 16th annual conference on Computer graphics and interactive techniquesWe analyse some recent approaches to the global illumination problem by introducing the corresponding reflection operators, and we demonstrate the advantages of a two-pass method. A generalization of the system introduced by Wallace et al. at Siggraph '...
Comments