Sprite: Added uvs.

src/objects/Sprite.js

@@ -5,10 +5,14 @@
 
 THREE.Sprite = ( function () {
 
-	var vertices = new Float32Array( [ - 0.5, - 0.5, 0, 0.5, - 0.5, 0, 0.5, 0.5, 0 ] );
+	var indices = new Uint16Array( [ 0, 1, 2,  0, 2, 3 ] );
+	var vertices = new Float32Array( [ - 0.5, - 0.5, 0,   0.5, - 0.5, 0,   0.5, 0.5, 0,   - 0.5, 0.5, 0 ] );
+	var uvs = new Float32Array( [ 0, 0,   1, 0,   1, 1,   0, 1 ] );
 
 	var geometry = new THREE.BufferGeometry();
+	geometry.addAttribute( 'index', new THREE.BufferAttribute( indices, 1 ) );
 	geometry.addAttribute( 'position', new THREE.BufferAttribute( vertices, 3 ) );
+	geometry.addAttribute( 'uv', new THREE.BufferAttribute( uvs, 2 ) );
 
 	return function ( material ) {