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 |
|---|---|---|---|
| 1316 | 2019-05-28 15:52:00 | 60.64 | 96% |
| 1215 | 2018-07-04 19:09:08 | 61.31 | 97% |