text: /**
   * @author sunag / http://www.sunag.com.br/
   */
  
  import { MathUtils } from '../../../../build/three.module.js';
  
  import { ShaderPass } from '../../postprocessing/ShaderPass.js';
  import { NodeMaterial } from '../materials/NodeMaterial.js';
  import { ScreenNode } from '../inputs/ScreenNode.js';
  
  function NodePass() {
  
  	ShaderPass.call( this );
  
  	this.name = "";
  	this.uuid = MathUtils.generateUUID();
  
  	this.userData = {};
  
  	this.textureID = 'renderTexture';
  
  	this.input = new ScreenNode();
  
  	this.material = new NodeMaterial();
  
  	this.needsUpdate = true;
  
  }
  
  NodePass.prototype = Object.create( ShaderPass.prototype );
  NodePass.prototype.constructor = NodePass;
  
  NodePass.prototype.render = function () {
  
  	if ( this.needsUpdate ) {
  
  		this.material.dispose();
  
  		this.material.fragment.value = this.input;
  
  		this.needsUpdate = false;
  
  	}
  
  	this.uniforms = this.material.uniforms;
  
  	ShaderPass.prototype.render.apply( this, arguments );
  
  };
  
  NodePass.prototype.copy = function ( source ) {
  
  	this.input = source.input;
  
  	return this;
  
  };
  
  NodePass.prototype.toJSON = function ( meta ) {
  
  	var isRootObject = ( meta === undefined || typeof meta === 'string' );
  
  	if ( isRootObject ) {
  
  		meta = {
  			nodes: {}
  		};
  
  	}
  
  	if ( meta && ! meta.passes ) meta.passes = {};
  
  	if ( ! meta.passes[ this.uuid ] ) {
  
  		var data = {};
  
  		data.uuid = this.uuid;
  		data.type = "NodePass";
  
  		meta.passes[ this.uuid ] = data;
  
  		if ( this.name !== "" ) data.name = this.name;
  
  		if ( JSON.stringify( this.userData ) !== '{}' ) data.userData = this.userData;
  
  		data.input = this.input.toJSON( meta ).uuid;
  
  	}
  
  	meta.pass = this.uuid;
  
  	return meta;
  
  };
  
  export { NodePass };
  