Patent Document ID: 7952590
Application ID: 11735337
Patent Status: 1

Claim One:
1. A computer-implemented method for texturing a modeled surface, the method comprising: receiving, in a computer device, an albedo map corresponding to light scattering under uniform incident diffuse light; determining, using the computer device and the albedo map, a local scattering parameter for a multipole bidirectional scattering surface reflectance distribution function (BSSRDF); and texturing, using the computer device, a modeled surface for display on a display device using the BSSRDF and the local scattering parameter; wherein determining the local scattering parameter comprises inverting a first formula that relates diffuse reflectance to at least the local scattering parameter; and wherein the first formula is: R d = R d ⁢ ⁢ 0 + α ′ 2 ⁢ ( ⅇ - B - ⅇ B - ⅇ ( 1 + 2 3 ⁢ A ) ⁢ B + ⅇ - ( 1 + 2 3 ⁢ A ) ⁢ B ) · ⅇ - 8 3 ⁢ A ⁡ ( n + 1 ) ⁢ B - ⅇ - 8 3 ⁢ AB ⅇ - 8 3 ⁢ AB - 1 , wherein R d is a determined reflectance, R d0 is a dipole approximation of a reflectance, and wherein A = 1 + F dr 1 - F dr = function ⁡ ( η ) ⁢ ⁢ and ⁢ ⁢ B = 3 ⁢ ( 1 - α ′ ) = σ tr ⁢ l .