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# innerConeAngle

The radial angle, in degrees, of the area fully illuminated by the light.

```
var innerConeAngle: Float { get set }
```

## Discussion

This property measures the angle from the light axis (the direction in which the light points; the negative z-axis of its local coordinate space) to the edge of the light’s effect. For example, a cone angle of 22.5 degrees (the default) creates a broad spot light. (The light’s [`lightType`](/documentation/ModelIO/MDLLight/lightType) value is [`MDLLightType.spot`](/documentation/ModelIO/MDLLightType/spot).) An angle of 90 degrees divides space evenly, illuminating in all directions in front of the light and none behind, and an angle of 180 degrees illuminates in all directions (creating a light whose type is [`MDLLightType.point`](/documentation/ModelIO/MDLLightType/point)).

---

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