.. _brdf_roujean_kernel:

*******************
Roujean Kernel
*******************

Implements the Roujean Kernel BRDF

Example
^^^^^^^
::

   import sasktranif.sasktranif as skif
   import math

   brdf = skif.ISKBrdf('ROUJEAN_KERNEL')
   mjd            = 52393.3792987115;
   location       = [0.0, 0.0, 25000.0, mjd];
   [ok,brdfvalue] = brdf.BRDF( 600.0, location, 0.6, 0.7, -0.8)