The observed brightness of a Lambertian surface may be written as the product of an albedo factor, p, and the cosine of the incident angle, cos i. This means that brightness can be written as a product of a term that depends on the material, p, and a term that depends on surface direction, which in turn depends on f and g.
| Game | Time | WPM | Accuracy |
|---|---|---|---|
| 1392 | 2017-09-22 12:19:41 | 79.98 | 96% |
| 640 | 2017-07-06 12:49:02 | 75.04 | 96% |
| 329 | 2017-04-18 13:49:53 | 66.86 | 85% |
| 18 | 2017-03-12 15:39:05 | 62.92 | 86% |