An Inexpensive BRDF Model for Physically‐based Rendering

@article{Schlick1994AnIB,
  title={An Inexpensive BRDF Model for Physically‐based Rendering},
  author={Christopher M. Schlick},
  journal={Computer Graphics Forum},
  year={1994},
  volume={13}
}
  • C. Schlick
  • Published 1 August 1994
  • Physics
  • Computer Graphics Forum
A new BRDF model is presented which can be viewed as an kind of intermediary model between empirism and theory. Main results of physics are observed (energy conservation, reciprocity rule, microfacet theory) and numerous phenomena involved in light reflection are accounted for, in a physically plausible way (incoherent and coherent reflection, spectrum modifications, anisotropy, self‐shadowing, multiple surface and subsurface reflection, differences between homogeneous and heterogeneous… 
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