Light originates from a single point, and spreads outward in all directions.
Representation of https://threejs.org/docs/index.html#api/lights/PointLight
The amount the light dims along the distance of the light In "physically correct" mode, decay = 2 leads to physically realistic light falloff.
If non-zero, light will attenuate linearly from maximum intensity at light position down to zero at distance.
In "physically correct" mode, the product of color * intensity is interpreted as luminous intensity measured in candela.
You can file an issue on GitHub if you see a typo or error on this page!