Realistic Real-Time Rendering of Eyes and Teeth
Jen-Yuan Chiang, Graham Fyffe · 2010
The rendering software supports direct point lighting and also environment lighting. We approximate environment lighting based on captured lighting environments. We use an image-based environment illumination technique to light the face with a specified environment map. An example is shown in Figure 1.The environment map is prefiltered with several blur kernels, for diffuse integration, glossy specular integration, and semi-glossy specular integration.