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 |
|---|---|---|---|
| 4574 | 2020-08-30 05:35:02 | 101.12 | 97% |
| 52 | 2018-06-12 00:14:22 | 77.65 | 96% |