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 |
|---|---|---|---|
| 994 | 2019-04-17 12:18:21 | 68.84 | 97% |
| 579 | 2019-03-29 05:07:49 | 59.00 | 98% |