A practical model for subsurface light transport

@article{Jensen2001APM,
  title={A practical model for subsurface light transport},
  author={Henrik Wann Jensen and Steve Marschner and Marc Levoy and Pat Hanrahan},
  journal={Proceedings of the 28th annual conference on Computer graphics and interactive techniques},
  year={2001}
}
  • H. Jensen, S. Marschner, P. Hanrahan
  • Published 1 August 2001
  • Physics
  • Proceedings of the 28th annual conference on Computer graphics and interactive techniques
This paper introduces a simple model for subsurface light transport in translucent materials. The model enables efficient simulation of effects that BRDF models cannot capture, such as color bleeding within materials and diffusion of light across shadow boundaries. The technique is efficient even for anisotropic, highly scattering media that are expensive to simulate using existing methods. The model combines an exact solution for single scattering with a dipole point source diffusion… 
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References

SHOWING 1-10 OF 20 REFERENCES
A diffusion theory model of spatially resolved, steady-state diffuse reflectance for the noninvasive determination of tissue optical properties in vivo.
TLDR
A model based upon steady-state diffusion theory which describes the radial dependence of diffuse reflectance of light from tissues is developed and the optical properties derived for the phantoms are within 5%-10% of those determined by other established techniques.
Reflection from layered surfaces due to subsurface scattering
TLDR
This paper presents a model for subsurface scattering in layered surfaces in terms of one-dimensional linear transport theory, and derives explicit formulas for backscattering and transmission that can be directly incorporated in most rendering systems, and a general Monte Carlo method that is easily added to a ray tracer.
Monte Carlo evaluation of non-linear scattering equations for subsurface reflection
TLDR
A new mathematical framework for solving a wide variety of rendering problems based on a non-linear integral scattering equation that treats the scattering functions of complex aggregate objects as first-class rendering primitives and new techniques for computing scattering functions from the composition of scattering objects are described.
Multiple Scattering as a Diffusion Process
  • J. Stam
  • Physics
    Rendering Techniques
  • 1995
TLDR
This work implemented both a multi-grid finite differences scheme and a finite-element blob method to approximate the effects of multiple scattering in the limit of an optically thick medium.
Distributed ray tracing
TLDR
Motion blur and depth of field calculations can be integrated with the visible surface calculations, avoiding the problems found in previous methods.
Scattering and absorption of turbid materials determined from reflection measurements. 1: theory.
TLDR
Comparison of the results indicates the range of values of the scattering and absorption parameters where the computationally fast diffusion approach is applicable.
Wave propagation and scattering in random media
TLDR
This IEEE Classic Reissue presents a unified introduction to the fundamental theories and applications of wave propagation and scattering in random media and is expressly designed for engineers and scientists who have an interest in optical, microwave, or acoustic wave propagate and scattering.
The theory of the back-scattering of light by blood
Motivated by recent experiments on the back-scattering of light by blood the authors have studied three models of the scattering of a cylindrical light beam by a half-space. In each case solution of
Optical properties of inhomogeneous materials
  • K. Oughstun
  • Physics
    IEEE Journal of Quantum Electronics
  • 1980
As stated by the authors in the Preface, their intent in writing this book was “to clarify the newest studies of the optical properties of inhomogeneous materials and then to provide a guide to solve
Acquiring the reflectance field of a human face
TLDR
A method to acquire the reflectance field of a human face and use these measurements to render the face under arbitrary changes in lighting and viewpoint and demonstrates the technique with synthetic renderings of a person's face under novel illumination and viewpoints.
...
...