The Point lamp is an omni-directional point of light, that is, a point radiating the same amount of light in all directions. It’s visualized by a plain, circled dot. Being a point light source, the direction of the light hitting an object’s surface is determined by the line joining the lamp and the point on the surface of the object itself. It can be used as simple model of e.g. a light bulb.
Light intensity/energy decays based on (among other variables) distance from the Point lamp to the object. In other words, surfaces that are further away are rendered darker.
- Distance, Energy and Color
- These settings are common to most types of lamps, and are described in Light Properties.
- Negative, This Layer Only, Specular, and Diffuse
- These settings control what the lamp affects, as described in What Light Affects.
- Falloff and Sphere
- These settings control how the light of the Lamp decays with distance. See Light Attenuation for details.