在運行時更改GameObject的素材

Question

我想實例化四個新的gameobject。我想分配從Web服務器接收的四種材料。現在，我可以創建四種材質並將圖像存儲到它們中。但是，我無法改變這四個gameobject材質。例如，我想更改第一個gameobject材質是image0，然後第二個gameobject是image1，依此類推。任何人都可以幫助我？這裏是我的代碼：

public int k = 0; 
public string filename; 
public string url; 
public string path; 
public GameObject newpaper; 
public Material material; 
public GameObject newObject ; 



[MenuItem("GameObject/Create Material")] 

void Start() { 
    StartCoroutine (LoadImage()); 
} 


void Update() { 

    GetComponent<Renderer>().material = material; 


} 

IEnumerator LoadImage(){ 
    for (int i = 0; i < 4; i++) { 

     Instantiate (newpaper); 

     filename = "image" + k.ToString() + ".png"; 
     Debug.Log (k); 
     url = "https://wwwfoodparadisehk.000webhostapp.com/" + filename; 
     WWW www = new WWW (url); 
     yield return www; 

     path = "Assets/MyMaterial" + k.ToString() + ".mat"; 

     k = k + 1; 

     material = new Material (Shader.Find ("Sprites/Default")); 
     AssetDatabase.CreateAsset (material, path); 


     Debug.Log (AssetDatabase.GetAssetPath (material)); 

     material.mainTexture = www.texture; 

     //GetComponent<Renderer>().material = material; 
     yield return 0; 

    } 

} 

Answer 1

您需要存儲的newpaper的新實例，然後設置其材料如下 -

public int k = 0; 
public string filename; 
public string url; 
public string path; 
public GameObject newpaper; 
public Material material; 
public Material planeMaterial; 
public GameObject newObject ; 

[MenuItem("GameObject/Create Material")] 

void Start() { 
    StartCoroutine (LoadImage()); 
} 


void Update() { 

} 

IEnumerator LoadImage(){ 
    for (int i = 0; i < 4; i++) { 

     GameObject newPaperInstance = Instantiate (newpaper) as GameObject; 

     filename = "image" + k.ToString() + ".png"; 
     Debug.Log (k); 
     url = "https://wwwfoodparadisehk.000webhostapp.com/" + filename; 
     WWW www = new WWW (url); 
     yield return www; 

     path = "Assets/MyMaterial" + k.ToString() + ".mat"; 

     k = k + 1; 

     material = new Material (Shader.Find ("Sprites/Default")); 
     AssetDatabase.CreateAsset (material, path); 


     Debug.Log (AssetDatabase.GetAssetPath (material)); 

     material.mainTexture = www.texture; 

     newPaperInstance.GetComponent<Renderer>().material = material; 

     // set newpaper's child "Plane"'s material 
     newPaperInstance.transform.Find("Plane").gameObject.GetComponent<Renderer>().material = planeMaterial; 
     //GetComponent<Renderer>().material = material; 
     yield return 0; 

    } 

}