code: function () {
              this._super(me.Renderer, "reset");
              if (this.isContextValid === false) {
                  // on context lost/restore
                  this.compositor.init(this);
              } else {
                  this.compositor.reset();
              }
              this.gl.disable(this.gl.SCISSOR_TEST);
              if (typeof this.fontContext2D !== "undefined" ) {
                  this.createFontTexture(this.cache);
              }
  
          }
docs: Reset context state
  @name reset
  @memberOf me.WebGLRenderer.prototype
  @function