What does the spotlight angle in Unity control?

The spotlight angle in Unity specifically controls the breadth of the light emitted by the spotlight. This angle determines how wide or narrow the cone of light is that the spotlight casts. A wider angle means a broader area will be illuminated, creating a softer and more dispersed light, whereas a narrower angle results in a focused beam of light that highlights a smaller area with increased intensity.

Brightness and reach of the light are not directly influenced by the spotlight angle itself. Brightness is typically influenced by the intensity setting of the light, while the distance a light reaches is determined by its range settings. Similarly, the color of the light is controlled by the color property of the light component, rather than the spotlight angle. Understanding these properties will help in effectively using lights in your Unity projects to achieve desired visual effects.