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 |
|---|---|---|---|
| 8014 | 2017-08-31 15:17:59 | 82.79 | 97% |
| 6316 | 2017-03-31 13:46:43 | 94.15 | 94% |
| 5675 | 2017-01-24 09:49:46 | 79.06 | 90% |