updateProjectionMatrix();
      // and now update the camera helper we're using to show the light's shadow camera
      cameraHelper.update();
    }
    updateCamera();
    setTimeout(updateCamera);

    class MinMaxGUIHelper {
      constructor(obj, minProp, maxProp, minDif) {
        this.obj = obj;
        this.minProp = minProp;
        this.maxProp = maxProp;
        this.minDif = minDif;
      }
      get min() {
        return this.obj[this.minProp];
      }
      set min(v) {
        this.obj[this.m