如何在 Unity 中控制點光源的顏色？

Question

我已經設法將一種材料應用於網格，隨着時間的推移不斷地改變顏色（從一組顏色中挑選出來），我想對點光源做同樣的事情。 我怎樣才能做到這一點？

這是控制材質顏色的腳本，我想對其進行調整，因此它也可以控制燈光的顏色。

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class ChangeColors : MonoBehaviour
{
    public Color[] colors;

    public int currentIndex = 0;
    private int nextIndex;

    public float changeColourTime = 2.0f;

    private float lastChange = 0.0f;
    private float timer = 0.0f;

    void Start()
    {
        if (colors == null || colors.Length < 2)
            Debug.Log("Need to setup colors array in inspector");

        nextIndex = (currentIndex + 1) % colors.Length;
    }

    void Update()
    {

        timer += Time.deltaTime;

        if (timer > changeColourTime)
        {
            currentIndex = (currentIndex + 1) % colors.Length;
            nextIndex = (currentIndex + 1) % colors.Length;
            timer = 0.0f;

        }
        GetComponent<Renderer>().material.color = Color.Lerp(colors[currentIndex], colors[nextIndex], timer / changeColourTime);
    }
}

Answer 1

您只需要在腳本中獲取對點光源的引用並更改其顏色，就像您為渲染器的材質所做的那樣。

您的腳本可以改進很多，但只需進行少量更改，如下所示：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class ChangeColors : MonoBehaviour
{
    public Color[] colors;
    public Light pLight;

    public int currentIndex = 0;
    private int nextIndex;

    public float changeColourTime = 2.0f;

    private float lastChange = 0.0f;
    private float timer = 0.0f;

    void Start()
    {
        if (colors == null || colors.Length < 2)
            Debug.Log("Need to setup colors array in inspector");

        nextIndex = (currentIndex + 1) % colors.Length;
    }

    void Update()
    {

        timer += Time.deltaTime;

        if (timer > changeColourTime)
        {
            currentIndex = (currentIndex + 1) % colors.Length;
            nextIndex = (currentIndex + 1) % colors.Length;
            timer = 0.0f;

        }
        Color c = Color.Lerp(colors[currentIndex], colors[nextIndex], timer / changeColourTime);
        GetComponent<Renderer>().material.color = c; // MIND! you should store the Renderer reference in a variable rather than getting it once per frame!!!
        pLight.color = c;
    }
}

Answer 2

這是舊的，但您只需要訪問燈光組件

GetComponent Light.color而不是Renderer.material.color