3D Text outline

using UnityEngine;
using System.Collections;
 
 
public class TextOutline : MonoBehaviour {
 
    //두께 설정
    public float pixelSize = 1;
    public Color outlineColor = Color.black;
 
    //해상도에 따라 pixel size를 조절할지 결정
    public bool resolutionDependant = false;
 
    //설정된 Resolution보다 클 경우 pixel size 두배로 결정
    public int doubleResolution = 1024;
 
    private TextMesh textMesh;
    private MeshRenderer meshRenderer;
    private bool isDead = false;
 
 
    // Use this for initialization
    void Start () {
        isDead = false;
        textMesh = GetComponent<TextMesh>();
        meshRenderer = GetComponent<MeshRenderer>();    
 
        for(int i = 0; i<8; i++)
        {
            GameObject outline = new GameObject("outline", typeof(TextMesh));
            outline.transform.parent = transform;
            outline.transform.localScale = new Vector3(1, 1, 1);
            MeshRenderer otherMeshrenderer = outline.GetComponent<MeshRenderer>();
            otherMeshrenderer.material = new Material(meshRenderer.material);
            otherMeshrenderer.shadowCastingMode = UnityEngine.Rendering.ShadowCastingMode.Off;
            otherMeshrenderer.receiveShadows = false;
            otherMeshrenderer.sortingLayerID = meshRenderer.sortingLayerID;
            otherMeshrenderer.sortingLayerName = meshRenderer.sortingLayerName;
        }
    }
    
    // Update is called once per frame
    void Update () {
    
    }
 
    public void LateUpdate()
    {
        if (isDead)
            return;
 
        Vector3 screenPoint = Camera.main.WorldToScreenPoint(transform.position);
 
        outlineColor.a = textMesh.color.a * textMesh.color.a;
 
        for(int i = 0; i<transform.childCount; i++)
        {
            TextMesh other = transform.GetChild(i).GetComponent<TextMesh>();
            other.color = outlineColor;
            other.text = textMesh.text;
            other.alignment = textMesh.alignment;
            other.characterSize = textMesh.characterSize;
            other.font = textMesh.font;
            other.fontSize = textMesh.fontSize;
            other.fontStyle = textMesh.fontStyle;
            other.richText = textMesh.richText;
            other.tabSize = textMesh.tabSize;
            other.lineSpacing = textMesh.lineSpacing;
            other.offsetZ = textMesh.offsetZ;
 
            bool doublePixel = resolutionDependant && (Screen.width > doubleResolution || Screen.height > doubleResolution);
 
            Vector3 pixelOffset = GetOffset(i) * (doublePixel ? 2.0f * pixelSize : pixelSize);
            Vector3 worldPoint = Camera.main.ScreenToWorldPoint(screenPoint + pixelOffset);
            other.transform.position = worldPoint;
 
            MeshRenderer otherMeshRenderer = transform.GetChild(i).GetComponent<MeshRenderer>();
            otherMeshRenderer.sortingLayerID = meshRenderer.sortingLayerID - 1;
            otherMeshRenderer.sortingLayerName = meshRenderer.sortingLayerName;
        }
    }
 
 
    public void dead()
    {
        isDead = true;
        for(int i = 0; i<transform.childCount; i++)
        {
            GameObject other = transform.GetChild(i).gameObject;
            Destroy(other);
        }
        Destroy(this);
    }
 
    Vector3 GetOffset(int i)
    {
        switch(i % 8)
        {
            case 0: return new Vector3(0, 1, 0);
            case 1: return new Vector3(1, 1, 0);
            case 2: return new Vector3(1, 0, 0);
            case 3: return new Vector3(1, -1, 0);
            case 4: return new Vector3(0, -1, 0);
            case 5: return new Vector3(-1, -1, 0);
            case 6: return new Vector3(-1, 0, 0);
            case 7: return new Vector3(-1, 1, 0);
            default: return Vector3.zero;
        }
    }
}