webvr js meetup initial commit

node_modules/three/examples/js/nodes/utils/LuminanceNode.js

@@ -0,0 +1,22 @@
+/**
+ * @author sunag / http://www.sunag.com.br/
+ */
+
+THREE.LuminanceNode = function( rgb ) {
+
+	THREE.TempNode.call( this, 'fv1' );
+
+	this.rgb = rgb;
+
+};
+
+THREE.LuminanceNode.prototype = Object.create( THREE.TempNode.prototype );
+THREE.LuminanceNode.prototype.constructor = THREE.LuminanceNode;
+
+THREE.LuminanceNode.prototype.generate = function( builder, output ) {
+
+	builder.include( 'luminance_rgb' );
+
+	return builder.format( 'luminance_rgb(' + this.rgb.build( builder, 'v3' ) + ')', this.getType( builder ), output );
+
+};