_handleRestoredContext (event) {
    event.preventDefault()
    this.isWebGLInitialized = false

    this.initRenderer()
  }
/** Reinitializes webgl context
   *
   * @param event - 'webglcontextrestored' event
   * @private
   */
Reinitializes webgl context
@param event - 'webglcontextrestored' event
@private
Reinitializes webgl context @param event - ' webglcontextrestored ' event @private
_handleRestoredContext (event) {
    event.preventDefault()
    this.isWebGLInitialized = false
    this.initRenderer()
  }
_handleRestoredContext ( event ) { event . preventDefault ( ) this . isWebGLInitialized = false this . initRenderer ( ) }
Reinitializes webgl context
 @param event - 'webglcontextrestored' event
 @private
Reinitializes webgl context @param event - ' webglcontextrestored ' event @private