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 |
|---|---|---|---|
| 859 | 2017-05-12 11:02:51 | 102.71 | 93% |
| 591 | 2017-05-06 07:52:14 | 100.21 | 95% |
| 223 | 2017-04-18 10:21:20 | 89.15 | 91% |