Почему мое единство зависает при импорте объекта? ⇐ C#

[Anonymous]

Это код для импорта объектов в мое Unity.

Код: Выделить всё

using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Text;

public class ObjImporter : MonoBehaviour {

public GameObject spawnPoint;
public GameObject emptyPrefabWithMeshRenderer;
public string meshPath;
public GameObject spawnedPrefab;

static float progressPercentageMin;
static float progressPercentageMax;
static float progressPercentage;

public Texture2D barBG;
public Texture2D barLoad;

int noOfLines;

void Start ()
{
progressPercentageMin = 0;
progressPercentageMax = 0;
progressPercentage = 0;
}

void Update ()
{
progressPercentage = Mathf.Lerp (progressPercentageMin, progressPercentageMax, Time.time * progressPercentageMax * 0.01f);
if(Input.GetKeyDown("space")){
Mesh importedMesh = GetComponent().ImportFile(meshPath);
noOfLines = TotalLines(meshPath);
spawnedPrefab=Instantiate(emptyPrefabWithMeshRenderer,spawnPoint.transform.position,spawnPoint.transform.rotation) as GameObject;
spawnedPrefab.GetComponent().mesh=importedMesh;
spawnedPrefab.GetComponent().material.color = new Color(Random.value, Random.value, Random.value, 1.0f);
}
}

public static void UpdateProgressBar()
{
progressPercentageMax += 10;
}

private struct meshStruct
{
public Vector3[] vertices;
public Vector3[] normals;
public Vector2[] uv;
public Vector2[] uv1;
public Vector2[] uv2;
public int[] triangles;
public int[] faceVerts;
public int[] faceUVs;
public Vector3[] faceData;
public string name;
public string fileName;
}

// Use this for initialization
public Mesh ImportFile (string filePath){
meshStruct newMesh = createMeshStruct(filePath);
populateMeshStruct(ref newMesh);

UpdateProgressBar();

Vector3[] newVerts = new Vector3[newMesh.faceData.Length];
Vector2[] newUVs = new Vector2[newMesh.faceData.Length];
Vector3[] newNormals = new Vector3[newMesh.faceData.Length];
int i = 0;
/* The following foreach loops through the facedata and assigns the appropriate vertex, uv, or normal
* for the appropriate Unity mesh array.
*/

UpdateProgressBar();

foreach (Vector3 v in newMesh.faceData)
{
newVerts[i] = newMesh.vertices[(int)v.x - 1];
if (v.y >= 1)
newUVs[i] = newMesh.uv[(int)v.y - 1];

if (v.z >= 1)
newNormals[i] = newMesh.normals[(int)v.z - 1];
i++;
}

Mesh mesh = new Mesh();

mesh.vertices = newVerts;
mesh.uv = newUVs;
mesh.normals = newNormals;
mesh.triangles = newMesh.triangles;

mesh.RecalculateBounds();
mesh.Optimize ();

UpdateProgressBar();

return mesh;
}

private int TotalLines(string filePath)
{
using (StreamReader r = new StreamReader(filePath))
{
int i = 0;
while (r.ReadLine() != null)
{
i++;
}
return i;
}
}

private static meshStruct createMeshStruct(string filename)
{
int triangles = 0;
int vertices = 0;
int vt = 0;
int vn = 0;
int face = 0;
meshStruct mesh = new meshStruct();
mesh.fileName = filename;

// Read and retrieve all the text in the file.
StreamReader stream = File.OpenText(filename);
string entireText = stream.ReadToEnd();
stream.Close();  // End of stream.

UpdateProgressBar();

// Going through the retrieved text.
using (StringReader reader = new StringReader(entireText))
{
string currentText = reader.ReadLine();
char[] splitIdentifier = { ' ' };
string[] brokenString;

UpdateProgressBar();

while (currentText != null)
{
if (!currentText.StartsWith("f ") && !currentText.StartsWith("v ") && !currentText.StartsWith("vt ")
&& !currentText.StartsWith("vn "))
{
currentText = reader.ReadLine();
if (currentText != null)
{
currentText = currentText.Replace("  ", " ");
}
}
else
{
currentText = currentText.Trim();                           // Trim the current line
brokenString = currentText.Split(splitIdentifier, 50);      // Split the line into an array, separating the original line by blank spaces
switch (brokenString[0])
{
case "v":
vertices++;
break;
case   "vt":
vt++;
break;
case "vn":
vn++;
break;
case "f":
face = face + brokenString.Length - 1;
triangles = triangles + 3 * (brokenString.Length - 2); /*brokenString.Length is 3 or greater since a face must have at least
3 vertices.   For each additional vertice, there is an additional
triangle in the mesh (hence this formula).*/
break;
}
currentText = reader.ReadLine();
if (currentText != null)
{
currentText = currentText.Replace("  ", " ");
}
}
}
UpdateProgressBar();
}
mesh.triangles = new int[triangles];
mesh.vertices = new Vector3[vertices];
mesh.uv = new Vector2[vt];
mesh.normals = new Vector3[vn];
mesh.faceData = new Vector3[face];

UpdateProgressBar();

return mesh;
}

private static void populateMeshStruct(ref meshStruct mesh)
{
StreamReader stream = File.OpenText(mesh.fileName);
string entireText = stream.ReadToEnd();
stream.Close();

UpdateProgressBar();

using (StringReader reader = new StringReader(entireText))
{
string currentText = reader.ReadLine();

char[] splitIdentifier = { ' ' };
char[] splitIdentifier2 = { '/' };
string[] brokenString;
string[] brokenBrokenString;
int f = 0;
int f2 = 0;
int v = 0;
int vn = 0;
int vt = 0;
int vt1 = 0;
int vt2 = 0;

UpdateProgressBar();

while (currentText != null)
{
if (!currentText.StartsWith("f ") && !currentText.StartsWith("v ") && !currentText.StartsWith("vt ") &&
!currentText.StartsWith("vn ") && !currentText.StartsWith("g ") && !currentText.StartsWith("usemtl ") &&
!currentText.StartsWith("mtllib ") && !currentText.StartsWith("vt1 ") && !currentText.StartsWith("vt2 ") &&
!currentText.StartsWith("vc ") && !currentText.StartsWith("usemap "))
{
currentText = reader.ReadLine();
if (currentText != null)
{
currentText = currentText.Replace("  ", " ");
}
}
else
{
currentText = currentText.Trim();
brokenString = currentText.Split(splitIdentifier, 50);
switch (brokenString[0])
{
case "g":
break;
case "usemtl":
break;
case "usemap":
break;
case "mtllib":
break;
//
case "v":
mesh.vertices[v] = new Vector3(System.Convert.ToSingle(brokenString[1]), System.Convert.ToSingle(brokenString[2]),
System.Convert.ToSingle(brokenString[3]));
v++;
break;
case "vt":
mesh.uv[vt] = new Vector2(System.Convert.ToSingle(brokenString[1]), System.Convert.ToSingle(brokenString[2]));
vt++;
break;
case "vt1":
mesh.uv[vt1] = new Vector2(System.Convert.ToSingle(brokenString[1]), System.Convert.ToSingle(brokenString[2]));
vt1++;
break;
case "vt2":
mesh.uv[vt2] = new Vector2(System.Convert.ToSingle(brokenString[1]), System.Convert.ToSingle(brokenString[2]));
vt2++;
break;
case "vn":
mesh.normals[vn] = new Vector3(System.Convert.ToSingle(brokenString[1]), System.Convert.ToSingle(brokenString[2]),
System.Convert.ToSingle(brokenString[3]));
vn++;
break;
case "vc":
break;
case "f":

int j = 1;
List  intArray = new List();
while (j < brokenString.Length && ("" + brokenString[j]).Length > 0)
{
Vector3 temp = new Vector3();
brokenBrokenString = brokenString[j].Split(splitIdentifier2, 3);    //Separate the face into individual components (vert, uv, normal)
temp.x = System.Convert.ToInt32(brokenBrokenString[0]);
if (brokenBrokenString.Length > 1)                                  //Some .obj files skip UV and normal
{
if (brokenBrokenString[1] != "")                                    //Some .obj files skip the uv and not the normal
{
temp.y = System.Convert.ToInt32(brokenBrokenString[1]);
}
temp.z = System.Convert.ToInt32(brokenBrokenString[2]);
}
j++;

mesh.faceData[f2] = temp;
intArray.Add(f2);
f2++;
}
j = 1;
while (j + 2 < brokenString.Length)     //Create triangles out of the face data.  There will generally be more than 1 triangle per face.
{
mesh.triangles[f] = intArray[0];
f++;
mesh.triangles[f] = intArray[j];
f++;
mesh.triangles[f] = intArray[j+1];
f++;

j++;
}
break;
}
currentText = reader.ReadLine();
if (currentText != null)
{
currentText = currentText.Replace("  ", " ");       //Some .obj files insert double spaces, this removes them.
}
}
}
}
UpdateProgressBar();
}

void OnGUI()
{
//GUI.Label (new Rect (20, 20, 100, 100), progressPercentage.ToString());
GUI.DrawTexture(new Rect(100, 100, 100, 20), barBG);
GUI.DrawTexture(new Rect(100, 100, progressPercentage, 20), barLoad);
}
}

Предполагается, что индикатор выполнения должен работать плавно при загрузке модели.
Однако Unity зависает из-за загрузки модели, и вы фактически не можете видеть прогресс индикатора.
Кто-нибудь знает, как отложить отрисовку индикатора выполнения, чтобы его было видно.

Подробнее здесь: https://stackoverflow.com/questions/300 ... ing-an-obj