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 |
|---|---|---|---|
| 3705 | 2017-04-14 13:27:17 | 93.11 | 96% |
| 2034 | 2017-02-03 14:24:55 | 84.95 | 96% |