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 |
|---|---|---|---|
| 2843 | 2017-04-15 22:30:01 | 155.99 | 94% |
| 1546 | 2017-02-24 10:20:44 | 165.49 | 95% |
| 640 | 2017-01-29 03:32:15 | 145.25 | 92% |