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 |
|---|---|---|---|
| 1301 | 2018-12-04 01:06:35 | 80.86 | 99% |
| 615 | 2017-12-19 23:24:26 | 77.51 | 95% |