pass(pass) {
    this.defer.then(() => {
      polyfill(pass, 'setSize', this.debug);
      polyfill(pass, 'initialise', this.debug);

      this.composer.addPass(pass);
      this.currentPass = pass;
    });

    return this;
  }
@method pass
@description Adds your custom pass
@param {Pass} pass A custom pass
@return {this}
@memberof module:modules/app.PostProcessorModule