Method import_model

libraries/lib-model-io/src/model-io.cpp:25–64

using namespace tinyply;

std::unordered_map<std::string, runtime_mesh> polymer::import_model(const std::string & path)
{
    std::unordered_map<std::string, runtime_mesh> models;

    std::string ext = get_extension(path);
    std::transform(ext.begin(), ext.end(), ext.begin(), ::tolower);

    if (ext == "obj")
    {
        auto asset = import_obj_model(path);
        for (auto & a : asset) models[a.first] = a.second;
    }
    else if (ext == "ply")
    {
        auto asset = import_ply_model(path);
        for (auto & a : asset) models[a.first] = a.second;
    }
    else if (ext == "mesh")
    {
        auto m = import_polymer_binary_model(path);
        models[get_filename_without_extension(path)] = m;
    }
    else if (ext == "gltf" || ext == "glb")
    {
        auto asset = import_gltf_model(path);
        for (auto & a : asset) models[a.first] = a.second;
    }
    else
    {
        throw std::runtime_error("cannot import model format");
    }

    // Compute tangents and bitangents...
    for (auto & m : models)
    {
        compute_tangents(m.second);
    }

    return models;
}

std::unordered_map<std::string, runtime_mesh> polymer::import_obj_model(const std::string & path)
{