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 |
|---|---|---|---|
| 899 | 2017-06-07 17:58:16 | 55.08 | 93% |
| 720 | 2017-06-02 16:30:13 | 46.50 | 81% |
| 644 | 2017-06-01 15:31:29 | 53.81 | 85% |
| 525 | 2017-05-30 16:46:56 | 50.86 | 82% |