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 |
|---|---|---|---|
| 910 | 2019-04-08 16:48:29 | 82.31 | 99% |
| 102 | 2018-12-23 20:13:29 | 72.76 | 97% |