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 |
|---|---|---|---|
| 4468 | 2019-02-28 15:55:21 | 98.99 | 98% |
| 3893 | 2018-10-30 11:07:00 | 102.69 | 99% |