src/drawable.js
/**
   * Initializer for the drawable
   *
   * Hooks up the drawable to all its gl-bound resources
   *
   * @param  {AssetManager} manager AssetManager containing the managed resources for this
   *                                drawable.
   * @return {Promise}              Resolves if the assets are successfully found and initialized,
   *                                rejects (and generates a warning) otherwise.
   */
Initializer for the drawable
Hooks up the drawable to all its gl-bound resources

@param  {AssetManager} manager AssetManager containing the managed resources for this
drawable.
@return {Promise}              Resolves if the assets are successfully found and initialized,
rejects (and generates a warning) otherwise.
Initializer for the drawable Hooks up the drawable to all its gl - bound resources @param { AssetManager } manager AssetManager containing the managed resources for this drawable . @return { Promise } Resolves if the assets are successfully found and initialized rejects ( and generates a warning ) otherwise .
init(manager) {
    let promises = this._loadAssets(manager);
    return Promise.all(promises).then(() => {
      this.ready = true;
      return this;
    });
  }
init ( manager ) { let promises = this . _loadAssets ( manager ) ; return Promise . all ( promises ) . then ( ( ) => { this . ready = true ; return this ; } ) ; }
Initializer for the drawable
 Hooks up the drawable to all its gl-bound resources
Initializer for the drawable Hooks up the drawable to all its gl - bound resources