A comprehensive physical model for light reflection
Proceedings of the 18th annual conference on Computer graphics and interactive techniques
Reflection from layered surfaces due to subsurface scattering
SIGGRAPH '93 Proceedings of the 20th annual conference on Computer graphics and interactive techniques
Generalization of the Lambertian model and implications for machine vision
International Journal of Computer Vision
Non-linear approximation of reflectance functions
Proceedings of the 24th annual conference on Computer graphics and interactive techniques
A practical model for subsurface light transport
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
A practical model for subsurface light transport
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
An Illumination Model for a Skin Layer Bounded by Rough Surfaces
Proceedings of the 12th Eurographics Workshop on Rendering Techniques
Reflectance and Texture of Real-World Surfaces Authors
CVPR '97 Proceedings of the 1997 Conference on Computer Vision and Pattern Recognition (CVPR '97)
A data-driven reflectance model
ACM SIGGRAPH 2003 Papers
Testing new variants of the Beckmann-Kirchhoff model against radiance data
Computer Vision and Image Understanding
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We develop a new model for the scattering of light from layered rough surfaces. The model contains a surface scattering component together with a subsurface scattering component. The former component corresponds to the roughness on the upper surface boundary and is modeled using the modified Beckmann model. The latter component accounts for both refraction due to Fresnel transmission through the layer and rough (Beckmann) scattering at the lower layer boundary. Depending on the type of surface, the contributions of the two scattering components to the total outgoing radiance can vary dramatically for different materials. This behavior is conveniently captured by allowing a balance parameter in the model. Our experiments with BRDF data from several types of surface and with different scales of roughness confirm that the new model outperforms alternative variants of the Beckmann model together with several alternative reflectance models.