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 |
|---|---|---|---|
| 8238 | 2019-04-01 14:57:09 | 103.63 | 98% |
| 3283 | 2017-11-23 17:19:51 | 68.64 | 95% |