void Mesh::generate_weights (void)
{
_weights_index_stream.resize(_vertex_stream.size(), WeightsIndex(0, 0, 0, 0));
_weights_strength_stream.resize(_vertex_stream.size(), Vector4(1.0F, 0.0F, 0.0F, 0.0F));
}
DTerr ImporterGeometryTWM::import(GeometryResource *target, std::string args)
{
FilePath pathname(target->path());
// open the file
BinaryFileStream file;
FileManager::open(file, pathname, true);
//
// Read_ in header
//
DTuint magic;
file >> magic;
if (magic != MAGIC) {
return DT3_ERR_FILE_WRONG_TYPE;
}
DTuint version;
file >> version;
//
// Read_ in data
//
_normals_count = 0;
_uv_set_0_count = 0;
_uv_set_1_count = 0;
_weights_count = 0;
DTint section,size;
file >> section >> size;
switch(section) {
case FILE: read_file(file, size); break;
default: WARNINGMSG("Invalid section"); break;
};
//
// Build Streams
//
// Calculate sizes needed
DTuint joints_size = 0;
for (DTuint i = 0; i < _meshes.size(); ++i) {
joints_size += _meshes[i]._joint_names.size();
}
// allocate joint names, force first one to always be identity
std::vector<std::string> joint_names;
joint_names.resize(joints_size);
DTuint joint_offset = 0; // Account for identity above
for (DTuint i = 0; i < _meshes.size(); ++i) {
MeshData &meshdata = _meshes[i];
if (meshdata._vertices.size() == 0)
continue;
std::shared_ptr<Mesh> mesh = Mesh::create();
// copy joint names
for (DTuint j = 0; j < meshdata._joint_names.size(); ++j) {
joint_names[joint_offset + j] = meshdata._joint_names[j];
}
std::vector<Vector3> vertex_stream;
std::vector<Vector3> normals_stream;
std::vector<Vector2> uvs_stream_0;
std::vector<Vector2> uvs_stream_1;
std::vector<Vector4> weights_strength;
std::vector<WeightsIndex> weights_index;
std::vector<Triangle> indices;
vertex_stream = meshdata._vertices;
normals_stream = meshdata._normals;
uvs_stream_0 = meshdata._uv_sets[0]._uvs;
uvs_stream_1 = meshdata._uv_sets[1]._uvs;
indices = meshdata._indices;
if (meshdata._weights.size()) {
weights_index.resize(meshdata._weights.size());
weights_strength.resize(meshdata._weights.size());
for (DTuint j = 0; j < meshdata._weights.size(); ++j) {
weights_strength[j] = Vector4( meshdata._weights[j].weight_1(),
meshdata._weights[j].weight_2(),
meshdata._weights[j].weight_3(),
meshdata._weights[j].weight_4() );
weights_index[j] = WeightsIndex( meshdata._weights[j].bone_1(),
meshdata._weights[j].bone_2(),
meshdata._weights[j].bone_3(),
meshdata._weights[j].bone_4() );
}
}
mesh->set_vertex_stream(vertex_stream);
mesh->set_normals_stream(normals_stream);
mesh->set_uv_stream0(uvs_stream_0);
mesh->set_uv_stream1(uvs_stream_1);
mesh->set_index_stream(indices);
mesh->set_weights_index_stream(weights_index);
mesh->set_weights_strength_stream(weights_strength);
// Some stuff we can generate
if (normals_stream.size() == 0) mesh->generate_normals();
if (uvs_stream_0.size() != 0) mesh->generate_tangents();
// Add the mesh
target->add_mesh(mesh);
joint_offset += (DTushort) meshdata._joint_names.size();
}
// Build skeleton
std::vector<SkeletonJoint> s;
build_skeleton(joint_names, _skeleton._joints, s);
Skeleton skeleton;
skeleton.set_skeleton(s);
target->set_skeleton(skeleton);
return DT3_ERR_NONE;
}
