Light.range

Description

The range of the light.

See Also: Light component.

#pragma strict
public class Example extends MonoBehaviour {
	var duration: float = 3.0f;
	var originalRange: float;
	var lt: Light;
	function Start() {
		lt = GetComponent.<Light>();
		originalRange = lt.range;
	}
	function Update() {
		var amplitude: var = Mathf.PingPong(Time.time, duration);
		// Transform from 0..duration to 0.5..1 range.
		amplitude = amplitude / duration * 0.5f + 0.5f;
		// Set light range.
		lt.range = originalRange * amplitude;
	}
}

using UnityEngine;

public class Example : MonoBehaviour
{
    // Pulse light's range between original range
    // and half of the original one

    float duration  = 3.0f;
    float originalRange;

    Light lt;

    void Start()
    {
        lt = GetComponent<Light>();
        originalRange = lt.range;
    }

    void Update()
    {
        var amplitude = Mathf.PingPong(Time.time, duration);

        // Transform from 0..duration to 0.5..1 range.
        amplitude = amplitude / duration * 0.5f + 0.5f;

        // Set light range.
        lt.range = originalRange * amplitude;
    }
}