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 |
|---|---|---|---|
| 2053 | 2019-01-23 05:24:04 | 89.36 | 96% |
| 410 | 2017-08-07 04:33:09 | 79.70 | 97% |
| 142 | 2017-06-03 13:05:22 | 68.70 | 91% |