Due to the sparsity of available measurements (we have 154 in-plane light-view configurations), renderings based directly on measured data exhibit significant artifacts in interpolation between solid angle bins. Thus, we find our analytic model a useful tool for smoothly representing the BRDF of a goniochromatic material even if only sparse measurements are available.
Filtering:
Rotation of sphere (in degrees):
| Emitted radiance (L_e): | 0.0 2.0 |
| Roughness: | 0.0 1.0 |
| Ambient coefficient (k_a): | 0.0 1.0 |
| Diffuse coefficient (k_d): | 0.0 1.0 |
| Specular coefficient (k_s): | 0.0 1.0 |
| Shininess (alpha): | 1.0 1.0e3 |