Method load

* Loads a LUT. * * @param {String} url - The URL of the 3dl-file. * @param {Function} [onLoad] - A callback that receives the loaded lookup texture. * @param {Function} [onProgress] - A progress callback that receives the XMLHttpRequest instance. * @param {Function} [onError] - An err

(url, onLoad = () => {
  }, onProgress = () => {
  }, onError = null)