code: function (renderer, camera) {
          var viewport = renderer.viewport;
          var dpr = viewport.devicePixelRatio || renderer.getDevicePixelRatio();
          var width = viewport.width * dpr;
          var height = viewport.height * dpr;
  
          var offset = this._haltonSequence[this._frame % this._haltonSequence.length];
  
          var translationMat = new Matrix4();
          translationMat.array[12] = (offset[0] * 2.0 - 1.0) / width;
          translationMat.array[13] = (offset[1] * 2.0 - 1.0) / height;
  
          Matrix4.mul(camera.projectionMatrix, translationMat, camera.projectionMatrix);
  
          Matrix4.invert(camera.invProjectionMatrix, camera.projectionMatrix);
      }
docs: Jitter camera projectionMatrix
  @parma {clay.Renderer} renderer
  @param {clay.Camera} camera