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 |
|---|---|---|---|
| 2789 | 2019-04-22 00:47:53 | 72.97 | 98% |
| 2302 | 2019-02-24 13:06:35 | 80.12 | 96% |