void SGQuad::setup(float w, float h) {
float hw = 0.5f * w;
float hh = 0.5f * h;
vec3f n = vec3f(0,0,1);
Geometry g;
g.init();
g.addVertex(vec3f(-hw, -hh, 0.0f));
g.addVertex(vec3f(hw, -hh, 0.0f));
g.addVertex(vec3f(hw, hh, 0.0f));
g.addVertex(vec3f(-hw, hh, 0.0f));
g.addNormal(n);
g.addNormal(n);
g.addNormal(n);
g.addNormal(n);
g.addTexCoord(vec2f(0, 0));
g.addTexCoord(vec2f(1, 0));
g.addTexCoord(vec2f(1, 1));
g.addTexCoord(vec2f(0, 1));
g.addTriangle(vec3u32(0, 1, 2));
g.addTriangle(vec3u32(2, 3, 0));
SGMesh::setup(g);
if(TheShaderManager::Instance().has("textured")) {
m_spEffect = SmartPtrSGEffect(new TexturedEffect(TheShaderManager::Instance().get("textured")));
}
}
bool loadObj( std::vector<Geometry> &geomList, const std::string &filename, float scale, int flags)
{
std::ifstream file;
file.open(filename.c_str(), std::ios::in);
std::cout<<"loading "<<filename<<std::endl;
if(file.fail())
{
std::cout<<"loadObj failed, could not read "<<std::endl;
return 1;
}
VertexBank vb;
Geometry g;
std::string line,param;
std::vector<vec3> tempVertex;
std::vector<vec3> tempNormal;
std::vector<vec2> tempTexCoord;
tempVertex.reserve(10000);
tempNormal.reserve(10000);
tempTexCoord.reserve(10000);
std::vector<std::vector<int> > vertexUsed;
std::vector<int> texCoordUsed;
int tempSG = 0;
std::vector<size_t> vertexRemap;
std::vector<size_t> normalRemap;
std::vector<size_t> texCoordRemap;
std::vector<int> resetVector;
resetVector.resize(1,-1);
std::string tempName;
while( !file.eof() && file.good() )
{
std::getline(file,line);
#ifdef DEBUG
std::cout<<line<<"\n";
#endif
Tokenizer token(line);
param = token.getToken();
if(param == "v")
{
vec3 vertex;
vertex.x = scale*toFloat(token.getToken());
vertex.y = scale*toFloat(token.getToken());
vertex.z = scale*toFloat(token.getToken());
//tempVertex.push_back(vertex);
//vertexUsed.push_back(resetVector);
vertexRemap.push_back( insertUnique(tempVertex, vertex) );
}
else if(param == "f")
{
ivec4 vdata(-1), tdata(-1), ndata(-1), fdata(-1);
for(int i=0; i<(int)token.size()-1; ++i)
{
param = token.getToken();
getIndices(param, vdata[i], tdata[i], ndata[i],
hasVertex,
hasTexCoord && !(flags & LOADOBJ_IGNORE_TEXCOORDS),
hasNormal && !(flags & LOADOBJ_IGNORE_NORMALS) );
int remappedV = (vdata[i] > -1) ? vdata[i] : -1;
int remappedN = (ndata[i] > -1) ? ndata[i] : -1;
int remappedT = (tdata[i] > -1) ? tdata[i] : -1;
int index;
//printf("Checking vertex uniqueness \n");
if(vb.isUnique(remappedV, remappedN, remappedT, index))
{
index = g.getVertexSize();
Geometry::sVertex tv;
assert( remappedV < (int)tempVertex.size() );
tv.position = tempVertex[ remappedV ];
if(remappedT > -1)
{
assert( remappedT < (int)tempTexCoord.size() );
tv.texCoord = tempTexCoord[ remappedT ];
}
if(remappedN > -1)
{
assert( remappedN < (int)tempNormal.size() );
tv.normal = tempNormal[ remappedN ];
}
g.addVertex(tv);
}
assert(index < (int)g.getVertexSize());
fdata[i] = index;
// if(tempSG > (int)vertexUsed[vdata[i]].size()-1)
// vertexUsed[vdata[i]].resize(tempSG+1,-1);
// if(vertexUsed[vdata[i]][tempSG] > -1)
// fdata[i] = vertexUsed[vdata[i]][tempSG];
// else
// {
// vertexUsed[vdata[i]][tempSG] = (int)g.vertices.size();
// fdata[i] = g.getVertexSize();
// Geometry::sVertex tv;
// tv.position = tempVertex[vdata[i]];
// //tv.nx = tv.ny = tv.nz = tv.s = tv.t = 0.0f;
// if(vtdata[i]>-1 && !(flags & LOADOBJ_IGNORE_TEXCOORDS))
// {
// assert( vtdata[i] < tempTexCoord.size() );
// tv.texCoord = tempTexCoord[vtdata[i]];
// }
// if(ndata[i]>-1 && !(flags & LOADOBJ_IGNORE_NORMALS))
// {
// assert( ndata[i] < tempNormal.size() );
// tv.normal = tempNormal[ndata[i]];
// }
// g.addVertex(tv);
// }
}
// if its a triangle, just insert.
// However if its a quad, then insert the two triangles forming the quad.
uvec3 t;
t[0] = fdata[0];
t[1] = fdata[1];
t[2] = fdata[2];
g.addTriangle(t);
if(fdata[3] != -1)
{
t[0] = fdata[3];
t[1] = fdata[0];
t[2] = fdata[2];
g.addTriangle(t);
}
}
else if(param == "vt")
{
vec2 tc;
tc.x = toFloat(token.getToken());
tc.y = toFloat(token.getToken());
//tempTexCoord.push_back(tc);
texCoordRemap.push_back( insertUnique(tempTexCoord, tc) );
}
else if(param == "vn")
{
vec3 normal;
normal.x = toFloat(token.getToken());
normal.y = toFloat(token.getToken());
normal.z = toFloat(token.getToken());
//tempNormal.push_back(normal);
normalRemap.push_back( insertUnique(tempNormal, normal) );
}
else if(param == "s")
tempSG = toInt(token.getToken());
else if(param == "g")
{
/*if(first)
first=false;
else
{
g.process();
geomList.push_back(g);
}
for(unsigned int i=0; i<vertexUsed.size(); ++i)
vertexUsed[i].clear();
g.clear();
*/
}
if(file.eof())
break;
}
file.close();
printf("tempVertex.size() = %i \n", (int)tempVertex.size());
printf("tempNormal.size() = %i \n", (int)tempNormal.size());
printf("tempTexCoord.size() = %i \n", (int)tempTexCoord.size());
printf("Reading is done, gonna process \n");
g.process();
geomList.push_back(g);
std::cout<<"done reading "<<filename<<std::endl;
return 0;
}