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 |
|---|---|---|---|
| 941 | 2019-02-12 23:51:23 | 69.82 | 97% |
| 523 | 2018-12-07 16:42:21 | 61.43 | 96% |