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 |
|---|---|---|---|
| 2120 | 2018-03-09 16:43:53 | 77.64 | 97% |
| 498 | 2017-06-02 16:29:44 | 71.15 | 96% |