Which property controls the distance that a Point Light can travel in Unity?

The Range property is essential because it determines how far the light emitted by a Point Light can effectively reach within a 3D space in Unity. When you adjust the Range setting, you are effectively controlling the maximum distance from the light source to the point where the light still contributes to the illumination of objects in the scene. This property not only influences how far the light can travel but also affects the overall lighting dynamics and realism in a scene by controlling the area in which surfaces are illuminated.

For instance, if the Range is set to a low value, the light will only illuminate a small sphere around it, while increasing the Range allows the light to affect objects further away, increasing the scene's visibility. This is particularly useful for managing performance and achieving the desired visual effect in a game or application, since excessively extending the Range could lead to unnecessary calculations for lighting at greater distances where it may not be needed.

Understanding the Range allows artists and developers to set appropriate lighting for different scenarios, enhancing both visual quality and performance in a Unity project.