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 |
|---|---|---|---|
| 1738 | 2017-05-18 20:37:25 | 107.91 | 94% |
| 582 | 2017-04-24 06:28:50 | 106.99 | 95% |