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 |
|---|---|---|---|
| 314 | 2018-01-25 13:40:07 | 66.42 | 95% |
| 204 | 2018-01-23 03:43:04 | 52.63 | 93% |