Patent ID: 8730240
Filing Date: 2014-05-20
Classification: G01N,G06T

Abstract:
1. A method, implemented at least in part by a computing device, the method comprising: mapping diffusion coefficients and absorption coefficients for a heterogeneous translucent material to a set of nodes of a three-dimensional polygrid representing a virtual object volume, the set of nodes being spatially distributed throughout the virtual object volume; packing the diffusion coefficients into a first set of two-dimensional textures and the absorption coefficients into a second set of two-dimensional textures that are organized according to the set of nodes; assigning virtual illumination conditions to the virtual object volume; and rendering the virtual object volume using the virtual illumination conditions as a boundary condition for a system of diffusion equations of the virtual object volume that are solved based on the first and second sets of two-dimensional textures.