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从代码创建材料并将其分配给对象

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我是Unity3d的新手，我有一个包含6个四边形的预制件，使它成为一个立方体 . 我想将图像纹理添加到立方体的不同面上 . 我从webservice获取图像所以，我必须在脚本中添加或更改材料 . 我面临的问题是，我无法在gameObject中找到材料属性 .

我试过下面的代码：

using UnityEngine;
using System.Collections;

public class shelfRuntime : MonoBehaviour {
    public GameObject bottle;
    public GameObject newBottle;
    // Use this for initialization
    void Start () {

            iterateChildren(newBottle.transform.root);

        GameObject rocketClone = (GameObject)Instantiate(bottle, bottle.transform.position, bottle.transform.rotation);
        rocketClone.transform.localScale += new Vector3(1, 1, 1);
        GameObject newBottleInMaking = (GameObject)Instantiate(newBottle, newBottle.transform.position, newBottle.transform.rotation);

        Transform[] allChildren = newBottleInMaking.GetComponentsInChildren<Transform>();
        foreach (Transform child in allChildren)
        {

            // do whatever with child transform here
        }


    }
    void iterateChildren(Transform trans)
    {
        Debug.Log(trans.name);
        if (trans.name == "Back") {
            var ting = trans.gameObject.GetComponent<Renderer>();
        //   trans.renderer.material  // there is no material property here 

        }

        // Do whatever logic you want on child objects here
        if (trans.childCount == 0) return;

        foreach (Transform tran in trans)
        {
            iterateChildren(tran);
        }
    }

    // Update is called once per frame
    void Update () {

    }
}

如何将材料设置为四边形？我的预制件内有6个四边形 .

c# unity3d

1 回答

  • 2

    您无法再直接在Unity中访问某些组件 . 您必须使用 GetComponent 获取组件（ Renderer ），然后从中访问该材料 .

    trans.renderer.material = ....

    应改为

    trans.GetComponent<Renderer>().material = yourNewMaterial;

    最后，当在Unity中创 Build 方体或四边形时， MeshRenderer 会自动附加到它们而不是 Renderer . 因此，您可能会遇到 GetComponent<Renderer>() 的运行时错误 . 请改用 MeshRenderer .

    trans.GetComponent<MeshRenderer>().material = yourNewMaterial;

    To create Material during run-time:

    Material myNewMaterial = new Material(Shader.Find("Standard"));

    下面的示例将创建一个Material，为其指定标准着色器，然后在将其应用于GameObject之前将纹理从 myTexture 变量更改为纹理 .

    public Texture myTexture;
void Start()
{
    //Find the Standard Shader
    Material myNewMaterial = new Material(Shader.Find("Standard"));
    //Set Texture on the material
    myNewMaterial.SetTexture("_MainTex", myTexture);
    //Apply to GameObject
    trans.GetComponent<MeshRenderer>().material = myNewMaterial;
}
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