ObjModel::ObjModel(std::string fileName)
{
std::string dirName = fileName;
if(dirName.rfind("/") != std::string::npos)
dirName = dirName.substr(0, dirName.rfind("/"));
if(dirName.rfind("\\") != std::string::npos)
dirName = dirName.substr(0, dirName.rfind("\\"));
if(fileName == dirName)
dirName = "";
std::ifstream pFile(fileName.c_str());
ObjGroup* currentGroup = new ObjGroup();
currentGroup->materialIndex = -1;
while(!pFile.eof())
{
std::string line;
std::getline(pFile, line);
line = replace(line, "\t", " ");
while(line.find(" ") != std::string::npos)
line = replace(line, " ", " ");
if(line == "")
continue;
if(line[0] == ' ')
line = line.substr(1);
if(line == "")
continue;
if(line[line.length()-1] == ' ')
line = line.substr(0, line.length()-1);
if(line == "")
continue;
if(line[0] == '#')
continue;
std::vector<std::string> params = split(line, " ");
params[0] = toLower(params[0]);
if(params[0] == "v")
vertices.push_back(Vec3f((float)atof(params[1].c_str()), (float)atof(params[2].c_str()), (float)atof(params[3].c_str())));
else if(params[0] == "vn")
normals.push_back(Vec3f((float)atof(params[1].c_str()), (float)atof(params[2].c_str()), (float)atof(params[3].c_str())));
else if(params[0] == "vt")
texcoords.push_back(Vec2f((float)atof(params[1].c_str()), (float)atof(params[2].c_str())));
else if(params[0] == "f")
{
for(size_t ii = 4; ii <= params.size(); ii++)
{
Face face;
for(size_t i = ii-3; i < ii; i++)
{
Vertex vertex;
vertex.normal = -1;
vertex.texcoord = -1;
std::vector<std::string> indices = split(params[i == (ii-3) ? 1 : i], "/");
if(indices.size() >= 1)
vertex.position = atoi(indices[0].c_str())-1;
if(indices.size() == 2) //texture
vertex.texcoord = atoi(indices[1].c_str())-1;
if(indices.size() == 3)
{
if( indices[1] != "")
{
vertex.texcoord = atoi(indices[1].c_str())-1;
}
vertex.normal = atoi(indices[2].c_str())-1;
}
face.vertices.push_back(vertex);
}
currentGroup->faces.push_back(face);
}
}
else if(params[0] == "s")
{
}
else if(params[0] == "mtllib")
{
loadMaterialFile(dirName + "/" + params[1], dirName);
}
else if(params[0] == "usemtl")
{
if(currentGroup->faces.size() != 0)
groups.push_back(currentGroup);
currentGroup = new ObjGroup();
currentGroup->materialIndex = -1;
for(size_t i = 0; i < materials.size(); i++)
{
MaterialInfo* info = materials[i];
if(info->name == params[1])
{
currentGroup->materialIndex = i;
break;
}
}
if(currentGroup->materialIndex == -1)
std::cout<<"Could not find material name "<<params[1]<<std::endl;
}
}
groups.push_back(currentGroup);
}
ObjModel::ObjModel(std::string fileName, Singleton* s): s(s) {
xpos = ypos = zpos = xrot = yrot = zrot = 0;
this->obj = this;
if(fileName == ""){
return;
}
std::string dirName = fileName;
if (dirName.rfind("/") != std::string::npos)
dirName = dirName.substr(0, dirName.rfind("/"));
if (dirName.rfind("\\") != std::string::npos)
dirName = dirName.substr(0, dirName.rfind("\\"));
if (fileName == dirName)
dirName = "";
std::ifstream pFile(fileName.c_str());
if (!pFile.is_open()) {
//std::cout << "Could not open file " << fileName << std::endl;
return;
}
ObjGroup *currentGroup = new ObjGroup();
currentGroup->materialIndex = -1;
while (!pFile.eof()) {
std::string line;
std::getline(pFile, line);
line = replace(line, "\t", " ");
while (line.find(" ") != std::string::npos)
line = replace(line, " ", " ");
if (line == "")
continue;
if (line[0] == ' ')
line = line.substr(1);
if (line == "")
continue;
if (line[line.length() - 1] == ' ')
line = line.substr(0, line.length() - 1);
if (line == "")
continue;
if (line[0] == '#')
continue;
std::vector<std::string> params = split(line, " ");
params[0] = toLower(params[0]);
if (params[0] == "v")
vertices.push_back(new Vec3f((float) atof(params[1].c_str()), (float) atof(params[2].c_str()),
(float) atof(params[3].c_str())));
else if (params[0] == "vn")
normals.push_back(new Vec3f((float) atof(params[1].c_str()), (float) atof(params[2].c_str()),
(float) atof(params[3].c_str())));
else if (params[0] == "vt")
texcoords.push_back(new Vec2f((float) atof(params[1].c_str()), (float) atof(params[2].c_str())));
else if (params[0] == "f") {
for (size_t ii = 4; ii <= params.size(); ii++) {
Face face;
for (size_t i = ii - 3; i < ii; i++) //magische forlus om van quads triangles te maken ;)
{
Vertex vertex;
std::vector<std::string> indices = split(params[i == (ii - 3) ? 1 : i], "/");
if (indices.size() >= 1) //er is een positie
vertex.position = atoi(indices[0].c_str()) - 1;
if (indices.size() == 2) //alleen texture
vertex.texcoord = atoi(indices[1].c_str()) - 1;
if (indices.size() == 3) //v/t/n of v//n
{
if (indices[1] != "")
vertex.texcoord = atoi(indices[1].c_str()) - 1;
vertex.normal = atoi(indices[2].c_str()) - 1;
}
face.vertices.push_back(vertex);
}
currentGroup->faces.push_back(face);
}
}
else if (params[0] == "s") {//smoothing
}
else if (params[0] == "mtllib") {
loadMaterialFile(dirName + "/" + params[1], dirName);
}
else if (params[0] == "usemtl") {
if (currentGroup->faces.size() != 0)
groups.push_back(currentGroup);
currentGroup = new ObjGroup();
currentGroup->materialIndex = -1;
for (size_t i = 0; i < materials.size(); i++) {
MaterialInfo *info = materials[i];
if (info->name == params[1]) {
currentGroup->materialIndex = i;
break;
}
}
if (currentGroup->materialIndex == -1) {
//std::cout << "Could not find material name " << params[1] << std::endl;
}
}
}
groups.push_back(currentGroup);
CalcMinVertex();
CalcMaxVertex();
InitBoundingSpheres();
CalcBoundingSpheres();
}
