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 |
|---|---|---|---|
| 4673 | 2019-02-15 12:50:54 | 62.76 | 98% |
| 2532 | 2018-01-25 13:40:18 | 56.19 | 96% |