Fixed broken example.

examples/canvas_geometry_terrain.html

@@ -65,7 +65,10 @@
 				scene = new THREE.Scene();
 
 				var data = generateHeight( 1024, 1024 );
-				var material = new THREE.MeshBasicMaterial( { map: new THREE.Texture( generateTexture( data, 1024, 1024 ) ), overdraw: true } );
+				var texture = new THREE.Texture( generateTexture( data, 1024, 1024 ) );
+				texture.needsUpdate = true;
+
+				var material = new THREE.MeshBasicMaterial( { map: texture, overdraw: true } );
 
 				var quality = 16, step = 1024 / quality;