Function loadURL

src/model.js:258–265

(url, onError)

  }

  function loadURL(url, onError) {
    loader.load(
      url,
      (gltf) => setModel(gltf.scene),
      undefined,
      (err) => onError && onError(err)
    );
  }

  if (defaultUrl) loadURL(defaultUrl);