start with standard example

examples/webgl_materials_nodes.html

@@ -107,7 +107,7 @@
 		var rtTexture, rtMaterial;
 		var gui, guiElements = [];
 
-		var param = { example: 'sss' };
+		var param = { example: 'standard' };
 
 		var brick = new THREE.TextureLoader().load( 'textures/brick_diffuse.jpg' );
 		var grass = new THREE.TextureLoader().load( 'textures/terrain/grasslight-big.jpg' );