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 |
---|---|---|---|
915 | 2017-04-22 09:06:06 | 47.55 | 90% |