three.js/examples/jsm/nodes/core/NodeFrame.js

function NodeFrame( time ) {

	this.time = time !== undefined ? time : 0;

	this.id = 0;

}

NodeFrame.prototype = {

	constructor: NodeFrame,

	update: function ( delta ) {

		++ this.id;

		this.time += delta;
		this.delta = delta;

		return this;

	},

	setRenderer: function ( renderer ) {

		this.renderer = renderer;

		return this;

	},

	setRenderTexture: function ( renderTexture ) {

		this.renderTexture = renderTexture;

		return this;

	},

	updateNode: function ( node ) {

		if ( node.frameId === this.id ) return this;

		node.updateFrame( this );

		node.frameId = this.id;

		return this;

	}

};

export { NodeFrame };