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 |
|---|---|---|---|
| 20762 | 2018-12-26 14:50:18 | 91.24 | 97% |
| 20605 | 2018-12-24 10:45:54 | 98.96 | 98% |
| 18246 | 2018-11-14 19:49:08 | 85.29 | 97% |