Method setModified

src/image/p5.Image.js:1381–1383

* helper method for web GL mode to indicate that an image has been * changed or unchanged since last upload. gl texture upload will * set this value to false after uploading the texture. * @param {Boolean} val sets whether or not the image has been * modified. * @private

(val)

   * @private
   */
  setModified(val) {
    this._modified = val; //enforce boolean?
  }

  /**
   * helper method for web GL mode to figure out if the image