The Bidirectional Scattering Distribution Function (BSDF) quantifies how much light is scattered by a surface, and is highly material-dependent. The folders below contain measured BSDF data for various (mainly optical black) surface treatments, least-squared fits of this data to analytic BSDF models (such as the Harvey model), and FRED files of these models. In general, it's difficult to determine how representative this data is of the surface you wish to model, therefore, use this data at your own risk (full disclaimer of liability given below). This data is provided for free, but if you use the analytic model data in a publication, please cite this website as the source.
Aeroglaze Z306 black paint
Aluminum, Anodized
MH2200 black solar absorbing paint
Disclaimer of Liability
This data is provided “as is” without any warranty of any kind, either express, implied, or statutory, including, but not limited to, fitness for a particular purpose, or any warranty that the data will be error free.
In no event shall Phobos Optics LLC be liable for any damages, including, but not limited to direct, indirect, special, or consequential damages, arising out of, resulting from, or in any way connected with this data, whether or not based upon warranty, contract, tort, or otherwise, whether or not injury was sustained by persons or property or otherwise, and whether or not loss was sustained from, or arose out of the results of, or use of, the data provided hereunder.