void Model::Load_OBJ(){
SDL_Log( "\n" );
SDL_Log( "%s:", this->Name.c_str() );
/*
//With LoadOBJ( ):
this->Init = LoadOBJ( this->OBJPathFile.c_str(), this->Vertices, this->Uvs, this->Normals );
std::vector <glm::vec3> Vertices_tmp;
std::vector <glm::vec2> Uvs_tmp;
std::vector <glm::vec3> Normals_tmp;
IndexVBO( this->Vertices, this->Uvs, this->Normals, this->Indices, Vertices_tmp, Uvs_tmp, Normals_tmp );
this->Vertices = Vertices_tmp;
this->Uvs = Uvs_tmp;
this->Normals = Normals_tmp;
*/
//faster
//with Assimp:
this->Init = LoadAssimp( this->OBJPathFile.c_str(), this->Vertices, this->Uvs, this->Normals, this->Indices );
this->SetCollision();
LoadMTL( this->MTLPathFile.c_str(), this->Ambient, this->Diffuse, this->Specular, this->Shininess );
if( this->Ambient.x == 0.0f and this->Ambient.y == 0.0f and this->Ambient.z == 0.0f ){
this->Ambient = glm::vec3( 0.2f );
}
}
Results ModelClass::LoadOBJ(String a_sFileName)
{
String sAbsoluteRoute;
sAbsoluteRoute = m_pSystem->m_pFolder->Root;
sAbsoluteRoute += m_pSystem->m_pFolder->Data;
sAbsoluteRoute += m_pSystem->m_pFolder->MOBJ;
sAbsoluteRoute += a_sFileName;
m_sModelName = a_sFileName;
//m_sModelName = "";
//int nLenght = static_cast<int>(a_sFileName.size());
//for(int i = 0; i < nLenght -4; i++)
//{
// m_sModelName += a_sFileName[i];
//}
FileReaderClass reader;
Results result = reader.ReadFile(sAbsoluteRoute);
if(result != Results::ERROR_FREE)
return result;
#ifdef DEBUG
std::cout << "File read @: " << sAbsoluteRoute << std::endl;
#endif
reader.Rewind();
int nGroupIndex = -1;
std::vector<vector3> vPosition; //Vector of Vertices
std::vector<vector3> vNormal; //Vector of Normals
std::vector<vector2> vUV; //vector of UVS
int nMaterial = 0;
while(reader.ReadNextLine() != DONE)
{
char* sTemp = new char[reader.m_sLine.size() +1];
String sWord = GetFirstWord(reader.m_sLine);
#pragma region Vertex
if(reader.m_sLine[0] == 'v')
{
float x = 0.0f, y = 0.0f, z = 0.0f;
if(reader.m_sLine[1] == ' ')
{
sscanf_s(reader.m_sLine.c_str(), "v %f %f %f", &x, &y, &z);
vPosition.push_back(vector3( x, y, z ));
}
else if(reader.m_sLine[1] == 't')
{
sscanf_s(reader.m_sLine.c_str(), "vt %f %f", &x, &y);
vUV.push_back( vector2(x, y));
}
else if(reader.m_sLine[1] == 'n')
{
sscanf_s(reader.m_sLine.c_str(), "vn %f %f %f", &x, &y, &z);
vNormal.push_back(vector3( x, y, z ));
}
}
#pragma endregion
#pragma region Group
else if(reader.m_sLine[0] == 'g')
{
//Verify if new group or existing one
//If different from current Group, change nGroup Index
String sName;
int nLineSize = static_cast<int>(reader.m_sLine.size()) + 1;
char* zsTemp = new char[nLineSize];
strcpy_s(zsTemp, nLineSize, reader.m_sLine.c_str());
char seps[] = " ,\t\n";
char *token, *next_token;
token = strtok_s(zsTemp, seps, &next_token);
//nEmptyGroups will count the number of Empty groups at the end of the group name
int nemprtyGroups = 0;
String sGroupNames;
sGroupNames = "";
while (token != NULL)//Go to next word
{
sName = token;
if(sName[0] == 'N')
{
if(sName[1] == 'U')
{
if(sName[2] == 'L')
{
if(sName[3] == 'L')
{
if(sName[4] == '_')
{
//This is an Empty group
}
else
{
sGroupNames += sName;
sGroupNames + " ";
}
}
else
{
sGroupNames += sName;
sGroupNames += " ";
}
}
else
{
sGroupNames += sName;
sGroupNames += " ";
}
}
else
{
sGroupNames += sName;
sGroupNames += " ";
}
}
else
{
sGroupNames += sName;
sGroupNames += " ";
}
if(token != NULL)
token = strtok_s(NULL, seps, &next_token);
}
delete[] zsTemp;
zsTemp = 0;
zsTemp = new char [sGroupNames.size() +1];
strcpy_s(zsTemp, sGroupNames.size() +1, sGroupNames.c_str());
token = strtok_s(zsTemp, seps, &next_token);
while (token != NULL)//Go to next word
{
sName = token;
if(token != NULL)
token = strtok_s(NULL, seps, &next_token);
}
delete[] zsTemp;
zsTemp = 0;
if(sName != "default")
{
int nTemp = -1;
for(int n = 0; n < static_cast<int> (m_vShape.size()); ++n)
{
if(m_vShape[n].Name == sName)
{
nTemp = n;
break;
}
}
if(nTemp >= 0) //Did exist
{
nGroupIndex = nTemp;
}
else //New group
{
ShapeClass group;
group.Name = sName;
m_vShape.push_back(group);
nGroupIndex = static_cast<int>(m_vShape.size()) -1;
}
}
}
#pragma endregion
#pragma region Faces
else if(reader.m_sLine[0] == 'f')
{
int nP1 = 0, nT1 = 0, nN1 = 0;
int nP2 = 0, nT2 = 0, nN2 = 0;
int nP3 = 0, nT3 = 0, nN3 = 0;
sscanf_s( reader.m_sLine.c_str(), "f %d/%d/%d %d/%d/%d %d/%d/%d",
&nP1, &nT1, &nN1,
&nP2, &nT2, &nN2,
&nP3, &nT3, &nN3);
m_vShape[nGroupIndex].AddVertexPosition(vPosition[nP1-1]);
m_vShape[nGroupIndex].AddVertexPosition(vPosition[nP2-1]);
m_vShape[nGroupIndex].AddVertexPosition(vPosition[nP3-1]);
m_vShape[nGroupIndex].AddVertexColor(vector3(1.0f,1.0f,1.0f));
m_vShape[nGroupIndex].AddVertexColor(vector3(1.0f,1.0f,1.0f));
m_vShape[nGroupIndex].AddVertexColor(vector3(1.0f,1.0f,1.0f));
m_vShape[nGroupIndex].AddVertexUV(vUV[nT1-1]);
m_vShape[nGroupIndex].AddVertexUV(vUV[nT2-1]);
m_vShape[nGroupIndex].AddVertexUV(vUV[nT3-1]);
m_vShape[nGroupIndex].AddVertexNormal(vNormal[nN1-1]);
m_vShape[nGroupIndex].AddVertexNormal(vNormal[nN2-1]);
m_vShape[nGroupIndex].AddVertexNormal(vNormal[nN3-1]);
glm::vec3 up = glm::vec3(0, 1, 0);
if(glm::abs(glm::normalize(vNormal[nN1-1])) != up){
m_vShape[nGroupIndex].AddVertexTangent(glm::cross(vNormal[nN1-1], up));
}else{
m_vShape[nGroupIndex].AddVertexTangent(glm::vec3(1, 0, 0));
}
if(glm::abs(glm::normalize(vNormal[nN2-1])) != up){
m_vShape[nGroupIndex].AddVertexTangent(glm::cross(vNormal[nN2-1], up));
}else{
m_vShape[nGroupIndex].AddVertexTangent(glm::vec3(1, 0, 0));
}
if(glm::abs(glm::normalize(vNormal[nN3-1])) != up){
m_vShape[nGroupIndex].AddVertexTangent(glm::cross(vNormal[nN3-1], up));
}else{
m_vShape[nGroupIndex].AddVertexTangent(glm::vec3(1, 0, 0));
}
m_vShape[nGroupIndex].m_nMaterialIndex = nMaterial;
}
#pragma endregion
#pragma region Material Library
else if(sWord == "mtllib")
{
sscanf_s(reader.m_sLine.c_str(), "mtllib %s", sTemp, reader.m_sLine.size());
LoadMTL(static_cast<String>(sTemp));
}
#pragma endregion
#pragma region Use Material
else if(sWord == "usemtl")
{
sscanf_s(reader.m_sLine.c_str(), "usemtl %s", sTemp, reader.m_sLine.size());
String sTempMaterial = m_sModelName + "\\" + sTemp;
nMaterial = m_pMaterialManager->IdentifyMaterial(sTempMaterial);
}
#pragma endregion
delete[] sTemp;
}
for(unsigned int i = 0; i < m_vShape.size(); i++)
m_vShape[i].InitGPU();
return Results::ERROR_FREE;
}
