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 |
|---|---|---|---|
| 793 | 2020-05-23 18:45:03 | 85.55 | 97% |
| 345 | 2020-05-18 15:37:36 | 88.96 | 98% |