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 |
|---|---|---|---|
| 1432 | 2018-03-04 20:34:24 | 58.65 | 98% |
| 605 | 2017-08-05 19:58:27 | 52.64 | 97% |