Mesh* Model3D::LoadModel(TCHAR* filename)
{
std::vector<tridata> triangles;
std::ifstream file(filename);
Mesh* newMesh = new Mesh();
std::vector<float> vertices;
std::vector<float> textures;
std::vector<float> norms;
std::vector<unsigned int> indices;
std::vector<Vertex> Vertexes;
int vCount = 0;
int iCount = 0;
int normal_index = 0;
if (!file)
std::cout << "Can't open file";
else
{
std::string sLine;
std::cout << "\n============== \n Loading MODEL " << filename << " \n ==============" << endl;
while (!file.eof())
{
getline(file, sLine);
if (sLine[0] == 'v' && sLine[1] == ' ')
{
vector<string> parts = split(sLine, ' ');
double x = stod(parts[2]);
double y = stod(parts[3]);
double z = stod(parts[4]);
//cout << x << " / " << y << " / " << z << endl;
Vertexes.push_back(Vertex(x, y, z));
vertices.push_back(x);
vertices.push_back(y);
vertices.push_back(z);
}
if (sLine[0] == 'v' && sLine[1] == 't')
{
vector<string> parts = split(sLine, ' ');
double xCoord = stod(parts[1]);
double yCoord = stod(parts[2]);
double zCoord = stod(parts[3]);
//cout << x << " / " << y << " / " << z << endl;
float yC = RangeConverter(yCoord, 0, 1, -1, 1);
float xC = RangeConverter(xCoord, 0, 1, -1, 1);
texc.push_back(Vector3(1 - yCoord, xCoord, zCoord));
//flip X AND Y!! IF MODEL BLANK FLIP AGAIN TODO CHECK SETTING IN MAX
textures.push_back(yC);
textures.push_back(xC);
textures.push_back(0);
}
if (sLine[0] == 'v' && sLine[1] == 'n')
{
vector<string> parts = split(sLine, ' ');
double x = stod(parts[1]);
double y = stod(parts[2]);
double z = stod(parts[3]);
normals.push_back(Vector3(x, y, z));
norms.push_back(x);
norms.push_back(y);
norms.push_back(z);
}
//v-t-n
if (sLine[0] == 'f')
{
vector<string> parts = split(sLine, ' ');
string a = parts[1];
string b = parts[2];
string c = parts[3];
vector<string> partsFaceOne = split(a, '/');
vector<string> partsFaceTwo = split(b, '/');
vector<string> partsFaceThree = split(c, '/');
tridata td;
//v
td.v[0] = stoi(partsFaceOne[0]);
td.v[1] = stoi(partsFaceTwo[0]);
td.v[2] = stoi(partsFaceThree[0]);
//t
td.t[0] = stoi(partsFaceOne[1]);
td.t[1] = stoi(partsFaceTwo[1]);
td.t[2] = stoi(partsFaceThree[1]);
//n
td.n[0] = stoi(partsFaceOne[2]);
td.n[1] = stoi(partsFaceTwo[2]);
td.n[2] = stoi(partsFaceThree[2]);
indices.push_back(td.v[0] - 1);
indices.push_back(td.v[1] - 1);
indices.push_back(td.v[2] - 1);
for (int i = 0; i < 3; i++)
{
//current pos
Vector3 position = Vector3(Vertexes.at(td.v[i] - 1).position.x, Vertexes.at(td.v[i] - 1).position.y, Vertexes.at(td.v[i] - 1).position.z);
int texCoordIndex = td.t[i] - 1;
Vector3 texCoord = texc.at(texCoordIndex);
for (int j = 0; j < Vertexes.size(); j++)
{
if (Vertexes.at(j).position == position)
{
Vertexes.at(j).texCoord = Vector3(texCoord.x, texCoord.y, 0);
}
}
}
//get 3 normals
Vector3 NormalA = normals[td.n[0] - 1];
Vector3 NormalB = normals[td.n[1] - 1];
Vector3 NormalC = normals[td.n[2] - 1];
//Calculate final normal
Vector3 finalNormal = calculateNormal(NormalA, NormalB, NormalC);
//push the final calculated normal
norms.push_back(finalNormal.x);
norms.push_back(finalNormal.y);
norms.push_back(finalNormal.z);
triangles.push_back(td);
}
}
file.close();
}
vector<float> okay;
vector<float> indokay;
int um = Vertexes.size();
for (int i = 0; i < Vertexes.size(); i++)
{
okay.push_back(Vertexes.at(i).position.x);
okay.push_back(Vertexes.at(i).position.y);
okay.push_back(Vertexes.at(i).position.z);
//tex
okay.push_back(Vertexes.at(i).texCoord.x);
okay.push_back(Vertexes.at(i).texCoord.y);
//vertices.push_back(Vertexes.at(i).texCoord.x);
//vertices.push_back(Vertexes.at(i).texCoord.y);
indokay.push_back(Vertexes.at(i).index);
}
//TODO http://assimp.sourceforge.net/lib_html/install.html
newMesh->AddVertices(okay, indices);
return newMesh;
}
