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 |
|---|---|---|---|
| 2179 | 2019-12-19 06:05:37 | 80.83 | 98% |
| 945 | 2018-02-01 09:24:12 | 78.14 | 97% |