int SkpModel::LoadVertices(){
SUResult res;
int out = 0;
for (int f=0; f<faces_.size(); f++){
//Form the mesh
SUMeshHelperRef mesh = SU_INVALID;
res = SUMeshHelperCreate(&mesh, faces_[f]);
ErrorHandler(res);
// Get number of vertices.
size_t num_vertices;
res = SUMeshHelperGetNumVertices(mesh, &num_vertices);
ErrorHandler(res);
//Get vertices.
std::vector<SUPoint3D> vertices(num_vertices);
res = SUMeshHelperGetVertices(mesh, num_vertices, &vertices[0], &num_vertices);
ErrorHandler(res);
vertices_.add(vertices);
//Get Normals
std::vector<SUVector3D> normals(num_vertices);
res = SUMeshHelperGetNormals (mesh, num_vertices, &normals[0], &num_vertices);
ErrorHandler(res);
normals_.add(normals);
//Front Texture Coordinates
std::vector<SUPoint3D> texture_coords(num_vertices);
size_t num_coords;
res = SUMeshHelperGetFrontSTQCoords(mesh, num_vertices, &texture_coords[0], &num_coords);
ErrorHandler(res);
assert(num_coords == num_vertices);
stqcoords_front_.add(texture_coords);
//Back Texture Coordinates
std::vector<SUPoint3D> texture_coords_back(num_vertices);
res = SUMeshHelperGetFrontSTQCoords(mesh, num_vertices, &texture_coords_back[0], &num_coords);
ErrorHandler(res);
assert(num_coords == num_vertices);
stqcoords_back_.add(texture_coords_back);
SUMeshHelperRelease(&mesh);
//*/
/*
size_t num_vertices;
SUFaceGetNumVertices(faces_[f], &num_vertices);
std::vector<SUVertexRef> vertices(num_vertices);
SUFaceGetVertices(faces_[f], num_vertices, &vertices[0], &num_vertices);
vertices_.add(vertices);
*/
}
return out;
}
int SkpModel::Face2AttributeIndices(SUFaceRef face, std::vector<size_t>* vertIdxs,
std::vector<size_t>* normalIdxs, std::vector<size_t>* fIdxs){
int out = 0;
SUResult res;
//Form the mesh
SUMeshHelperRef mesh = SU_INVALID;
res = SUMeshHelperCreate(&mesh, face);
ErrorHandler(res);
// Get number of vertices.
size_t num_vertices;
res = SUMeshHelperGetNumVertices(mesh, &num_vertices);
ErrorHandler(res);
//Get vertices.
std::vector<SUPoint3D> vertices(num_vertices);
res = SUMeshHelperGetVertices(mesh, num_vertices, &vertices[0], &num_vertices);
ErrorHandler(res);
//Get Normals
std::vector<SUVector3D> normals(num_vertices);
res = SUMeshHelperGetNormals (mesh, num_vertices, &normals[0], &num_vertices);
ErrorHandler(res);
//Get Front Texture indices
std::vector<SUPoint3D> fcoords(num_vertices);
res = SUMeshHelperGetFrontSTQCoords(mesh, num_vertices, &fcoords[0], &num_vertices);
ErrorHandler(res);
SUMeshHelperRelease(&mesh);
assert(vertIdxs->size() == num_vertices);
for (size_t i =0; i < num_vertices; i++){
vertIdxs->at(i) = vertices_.get_index(vertices[i]);
normalIdxs->at(i) = normals_.get_index(normals[i]);
fIdxs->at(i) = stqcoords_front_.get_index(fcoords[i]);
}
return out;
}
void ModelWriter::writeFace(SUMeshHelperRef mesh, const Transform& transform, bool front, bool textured) {
size_t vertexCount=0;
SUMeshHelperGetNumVertices(mesh,&vertexCount);
vector<SUPoint3D> verts(vertexCount);
SUMeshHelperGetVertices(mesh,vertexCount,verts.data(),&vertexCount);
vector<SUVector3D> normals(vertexCount);
SUMeshHelperGetNormals(mesh,vertexCount,normals.data(),&vertexCount);
vector<SUPoint3D> textures(vertexCount);
size_t triCount = 0;
SUMeshHelperGetNumTriangles(mesh,&triCount);
size_t gotIndices = 0;
vector<size_t> indicies(triCount*3);
SUResult res = SUMeshHelperGetVertexIndices(mesh,triCount*3,indicies.data(),&gotIndices);
assert(res == SU_ERROR_NONE);
if(textured) {
if(front) {
SUMeshHelperGetFrontSTQCoords(mesh,vertexCount,textures.data(),&vertexCount);
} else {
SUMeshHelperGetBackSTQCoords(mesh,vertexCount,textures.data(),&vertexCount);
}
}
float normalScale = 1.0f;
if(!front) {
normalScale = -1.0f;
}
bool flip = !front;
SUVector3D xFlipTest = xaxis * transform;
if(xFlipTest.x < 0) {
flip = !flip;
}
SUVector3D yFlipTest = yaxis * transform;
if(yFlipTest.y < 0) {
flip = !flip;
}
for(size_t t = 0; t < triCount; t++) {
m_Faces << "f ";
for(int i=0; i<3; i++) {
int j = (t*3) + (flip ? 2-i : i);
m_Faces << getIndexedPos(verts[indicies[j]]*transform) << "/";
if(textured)
m_Faces << getIndexedTex(textures[indicies[j]]);
m_Faces << "/" << getIndexedNormal(normals[indicies[j]]*normalScale*transform) << " ";
}
m_Faces << endl;
}
}