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 |
|---|---|---|---|
| 4604 | 2018-04-13 20:08:01 | 90.23 | 97% |
| 2832 | 2017-07-08 19:58:46 | 88.63 | 98% |
| 1326 | 2017-06-13 21:11:34 | 83.62 | 97% |