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 |
|---|---|---|---|
| 6851 | 2020-09-08 15:44:49 | 58.84 | 93% |
| 6609 | 2020-09-06 11:04:34 | 56.91 | 93% |