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 |
|---|---|---|---|
| 5436 | 2017-04-23 11:31:18 | 127.13 | 94% |
| 5343 | 2017-02-20 11:42:53 | 147.14 | 97% |