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 |
|---|---|---|---|
| 801 | 2017-03-06 22:56:00 | 67.14 | 94% |
| 690 | 2017-02-28 13:13:32 | 63.24 | 94% |