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 |
|---|---|---|---|
| 9907 | 2020-05-26 10:07:15 | 87.10 | 97% |
| 3248 | 2019-12-14 00:51:23 | 68.67 | 96% |