PointLight

Create a point light source which emits from a point in all directions. At most 5 directional lights can be supported.

<p><i>Two spheres with point light</i></p>

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Usage

Create a point light source with color, intensity and position.

const pointLight= new PointLight({
  color: [128, 128, 0],
  intensity: 2.0,
  position: [0, 0, 200]
});

The constructor for the PointLight class. Use this to create a new PointLight.

const pointLight = new PointLight({color, intensity, position});

color - (number[3],) RGB color of point light source, default value is [255, 255, 255].
intensity - (number) Strength of point light source, default value is 1.0.
position - (number[3]) Location of point light source, default value is [0, 0, 1].The coordinate system of the position depends on the current view: [longitude, latitude, altitude] in geospatial views and world position in non-geospatial views.
attenuation = (number[3]) Light attenuation coefficients: [C_constant, C_linear, C_quadratic]. Reduces the intensity based on the distance D from the light:
```
Intensity = Intensity / (C_constant + C_linear * D + C_quadratic * D * D)
```
- For (approximately) physically correct attenuation, use attenuation: [1, 0, n].
- Default: [1, 0, 0] (no attenuation due to distance).