private static void AddMeshToGameObject(Mesh[] meshes, GameObject obj)
{
Renderer objRenderer = obj.GetComponent <Renderer>();
Material[] mats = new Material[meshes.Length];
MaterialHandler mtlHandler = MaterialHandler.GetInstance();
for (int i = 0; i < meshes.Length; i++)
{
Material mat = mtlHandler.GetMaterialForMesh(meshes[i].name);
if (mat == null)
{
Debug.LogFormat("Could not find material for mesh {0}", meshes[i].name);
mats[i] = mtlHandler.GetMaterialForMesh("default");
}
else
{
mats[i] = mat;
}
}
objRenderer.materials = mats;
Mesh main = new Mesh();
main.subMeshCount = meshes.Length;
if (meshes.Length == 0)
{
obj.GetComponent <MeshFilter>().mesh = main;
}
else
{
CombineInstance[] combine = new CombineInstance[meshes.Length];
for (int i = 0; i < meshes.Length; i++)
{
combine[i].mesh = meshes[i];
combine[i].transform = Matrix4x4.identity;
}
main.CombineMeshes(combine);
for (int i = 0; i < main.subMeshCount; i++)
{
int[] tri = new int[0];
tri = meshes[i].triangles;
int offset = 0;
if (i > 0)
{
for (int j = 0; j < i; j++)
{
offset += meshes[j].vertexCount;
}
}
main.SetTriangles(tri, i, false, offset);
//Don't ask?
if (main.subMeshCount != meshes.Length)
{
main.subMeshCount = meshes.Length;
}
}
obj.GetComponent <MeshFilter>().mesh = main;
}
}
private static GameObject AddMeshToNewGameObject(Mesh[] meshes, bool addMeshCollider = false, string name = null)
{
//Set up our gameobject and add a renderer and filter
GameObject obj = new GameObject();
obj.AddComponent <MeshRenderer>();
obj.AddComponent <MeshFilter>();
Renderer objRenderer = obj.GetComponent <Renderer>();
Material[] mats = new Material[meshes.Length];
MaterialHandler mtlHandler = MaterialHandler.GetInstance();
for (int i = 0; i < meshes.Length; i++)
{
Material mat = mtlHandler.GetMaterialForMesh(meshes[i].name);
if (mat == null)
{
Debug.LogFormat("Could not find material for mesh {0}", meshes[i].name);
mats[i] = mtlHandler.GetMaterialForMesh("default");
}
else
{
mats[i] = mat;
}
}
objRenderer.materials = mats;
Mesh main = new Mesh();
main.subMeshCount = meshes.Length;
if (meshes.Length == 0)
{
obj.GetComponent <MeshFilter>().mesh = main;
}
else
{
CombineInstance[] combine = new CombineInstance[meshes.Length];
for (int i = 0; i < meshes.Length; i++)
{
combine[i].mesh = meshes[i];
combine[i].transform = Matrix4x4.identity;
}
main.CombineMeshes(combine);
for (int i = 0; i < main.subMeshCount; i++)
{
int[] tri = meshes[i].triangles;
int offset = 0;
if (i > 0)
{
for (int j = 0; j < i; j++)
{
offset += meshes[j].vertexCount;
}
}
main.SetTriangles(tri, i, false, offset);
//Don't ask?
if (main.subMeshCount != meshes.Length)
{
main.subMeshCount = meshes.Length;
}
}
obj.GetComponent <MeshFilter>().mesh = main;
}
if (addMeshCollider)
{
obj.AddComponent <MeshCollider>();
}
string newName = "";
//Redo this
if (name != null)
{
newName = name;
}
else
{
newName = meshes.Length > 0 ? meshes[0].name.Substring(0, meshes[0].name.Length - 2) : "Unknown";
}
obj.name = newName;
obj.SetActive(false);
return(obj);
}
private void LoadMeshData(string fileName)
{
StringBuilder sb = new StringBuilder();
string text = File.ReadAllText(fileName);
int start = 0;
string objectName = null;
bool hasColor = false;
int faceDataCount = 0;
StringBuilder sbFloat = new StringBuilder();
StringBuilder mtlFile = new StringBuilder();
StringBuilder mtlName = new StringBuilder();
for (int i = 0; i < text.Length; i++)
{
if (text[i] == '\n')// || text[i] == '#')
{
sb.Remove(0, sb.Length);
// Start +1 for whitespace '\n'
sb.Append(text, start + 1, i - start);
start = i;
if (sb[0] == 'o' && sb[1] == ' ')
{
sbFloat.Remove(0, sbFloat.Length);
int j = 2;
while (j < sb.Length)
{
objectName += sb[j];
j++;
}
}
else if (sb[0] == 'm' && sb[1] == 't' && sb[2] == 'l' && sb[3] == 'l' && sb[4] == 'i' && sb[5] == 'b')
{
int splitStart = 6;
sbFloat.Remove(0, sbFloat.Length);
while (splitStart < sb.Length)
{
mtlFile.Append(sb[splitStart]);
splitStart++;
}
}
else if (sb[0] == 'u' && sb[1] == 's' && sb[2] == 'e' && sb[3] == 'm' && sb[4] == 't' && sb[5] == 'l')
{
int splitStart = 6;
sbFloat.Remove(0, sbFloat.Length);
while (splitStart < sb.Length)
{
mtlName.Append(sb[splitStart]);
splitStart++;
}
}
else if (sb[0] == 'v' && sb[1] == ' ') // Vertices
{
int splitStart = 2;
vertices.Add(new Vector3(GetFloat(sb, ref splitStart, ref sbFloat),
GetFloat(sb, ref splitStart, ref sbFloat),
GetFloat(sb, ref splitStart, ref sbFloat)));
}
else if (sb[0] == 'v' && sb[1] == 't' && sb[2] == ' ') // UV
{
int splitStart = 3;
uv.Add(new Vector4(GetFloat(sb, ref splitStart, ref sbFloat),
GetFloat(sb, ref splitStart, ref sbFloat),
GetFloat(sb, ref splitStart, ref sbFloat),
GetFloat(sb, ref splitStart, ref sbFloat)));
}
else if (sb[0] == 'v' && sb[1] == 'n' && sb[2] == ' ') // Normals
{
int splitStart = 3;
normals.Add(new Vector3(GetFloat(sb, ref splitStart, ref sbFloat),
GetFloat(sb, ref splitStart, ref sbFloat),
GetFloat(sb, ref splitStart, ref sbFloat)));
}
else if (sb[0] == 'v' && sb[1] == 'c' && sb[2] == ' ') // Vertex colors
{
int splitStart = 3;
//Colors are written a, r, g, b
byte a = Scale(GetFloat(sb, ref splitStart, ref sbFloat));
byte r = Scale(GetFloat(sb, ref splitStart, ref sbFloat));
byte g = Scale(GetFloat(sb, ref splitStart, ref sbFloat));
byte b = Scale(GetFloat(sb, ref splitStart, ref sbFloat));
if (!hasColor && r + g + b + a > 0)
{
hasColor = true;
}
colors.Add(new Color32(r, g, b, a));
}
else if (sb[0] == 'f' && sb[1] == ' ')
{
int splitStart = 2;
int j = 1;
intArray.Clear();
int info = 0;
// Add faceData, a face can contain multiple triangles, facedata is stored in following order vert, uv, normal. If uv or normal are / set it to a 0
while (splitStart < sb.Length && char.IsDigit(sb[splitStart]))
{
faceData.Add(new Vector3Int(GetInt(sb, ref splitStart, ref sbFloat),
GetInt(sb, ref splitStart, ref sbFloat),
GetInt(sb, ref splitStart, ref sbFloat)));
j++;
intArray.Add(faceDataCount);
faceDataCount++;
}
info += j;
j = 1;
while (j + 2 < info) //Create triangles out of the face data. There will generally be more than 1 triangle per face.
{
triangles.Add(intArray[0]);
triangles.Add(intArray[j]);
triangles.Add(intArray[j + 1]);
j++;
}
}
}
}
MaterialHandler mtlHandler = MaterialHandler.GetInstance();
mtlHandler.LoadMaterial(Path.Combine(fileName.Substring(0, fileName.LastIndexOf(@"\")), mtlFile.ToString().Trim()));
mtlHandler.RegisterMaterialForMesh(meshName, mtlName.ToString().Trim());
if (hasColor)
{
mtlHandler.SetMaterialShader(mtlName.ToString(), "texblend");
}
}
