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 |
|---|---|---|---|
| 1867 | 2020-09-01 16:08:42 | 56.95 | 96% |
| 962 | 2020-07-28 15:13:15 | 54.76 | 95% |