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2. An Analytic BRDF for Materials with Spherical Lambertian Scatterers
 
 # An Analytic BRDF for Materials with Spherical Lambertian Scatterers

  ![](/sites/default/files/styles/wide/public/publications/brdf.png?itok=CXWRkVGc)

 We present a new analytic BRDF for porous materials comprised of spherical Lambertian scatterers. The BRDF has a single parameter: the albedo of the Lambertian particles. The resulting appearance exhibits strong back scattering and saturation effects that height-field-based models such as Oren-Nayar cannot reproduce.



 ## Authors



[Eugene d'Eon](/person/eugene-d-eon)

 

 

 ## Publication Date



Monday, June 21, 2021

 

 ## Published in



Eurographics Symposium on Rendering

 

 ## Research Area



[Computer Graphics](/research-area/computer-graphics)

 

 

 ## External Links



[Mitsuba implementation of the BRDF](https://github.com/eugenedeon/mitsuba)

 

 

 ## Uploaded Files



[Paper](https://d1qx31qr3h6wln.cloudfront.net/publications/lambertsphereBRDF.pdf "Open file in new window")19.81 MB

[Video comparing four BRDFs under dynamic lighting](https://d1qx31qr3h6wln.cloudfront.net/publications/shaderball_all.mp4 "Open video in new window")14.55 MB

 

 

 ## Copyright



Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than Eurographics must be honored.