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 |
|---|---|---|---|
| 4327 | 2019-02-20 01:24:36 | 54.52 | 99% |
| 1631 | 2017-05-02 00:47:37 | 39.33 | 92% |