diff --git a/framework/renderers/CompositeViewRenderer.php b/framework/renderers/CompositeViewRenderer.php
new file mode 100644
index 0000000..a7fbcf3
--- /dev/null
+++ b/framework/renderers/CompositeViewRenderer.php
@@ -0,0 +1,56 @@
+<?php
+/**
+ * Composite view renderer class file.
+ *
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright &copy; 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\renderers;
+use Yii;
+use yii\base\View;
+use yii\base\ViewRenderer;
+
+/**
+ * CompositeViewRenderer allows you to use multiple view renderers in a single
+ * application.
+ *
+ * @author Alexander Makarov <sam@rmcreative.ru>
+ * @since 2.0
+ */
+class CompositeViewRenderer extends ViewRenderer
+{
+	/**
+	 * @var array a config array with the view renderer objects or the configuration arrays for
+	 * creating the view renderers indexed by file extensions.
+	 */
+	public $renderers = array();
+
+	/**
+	 * Renders a view file.
+	 *
+	 * This method is invoked by [[View]] whenever it tries to render a view.
+	 * Child classes must implement this method to render the given view file.
+	 *
+	 * @param View $view the view object used for rendering the file.
+	 * @param string $file the view file.
+	 * @param array $params the parameters to be passed to the view file.
+	 *
+	 * @return string the rendering result
+	 */
+	public function render($view, $file, $params)
+	{
+		$ext = pathinfo($file, PATHINFO_EXTENSION);
+
+		if($ext === 'php' || !isset($this->renderers[$ext])) {
+			return $view->renderPhpFile($file, $params);
+		}
+		else {
+			if (is_array($this->renderers[$ext])) {
+				$this->renderers[$ext] = Yii::createObject($this->renderers[$ext]);
+			}
+			return $this->renderers[$ext]->render($view, $file, $params);
+		}
+	}
+}
\ No newline at end of file
diff --git a/framework/renderers/SmartyViewRenderer.php b/framework/renderers/SmartyViewRenderer.php
index c2bb58c..92fa3f2 100644
--- a/framework/renderers/SmartyViewRenderer.php
+++ b/framework/renderers/SmartyViewRenderer.php
@@ -20,9 +20,24 @@ use \yii\base\ViewRenderer;
  */
 class SmartyViewRenderer extends ViewRenderer
 {
+	/**
+	 * @var string alias pointing to where Smarty code is located.
+	 */
 	public $smartyDir = '@app/vendors/Smarty';
+
+	/**
+	 * @var string alias pointing to where Smarty cache will be stored.
+	 */
 	public $cacheDir = '@app/runtime/Smarty/cache';
+
+	/**
+	 * @var string alias pointing to where Smarty compiled teamplates will be stored.
+	 */
 	public $compileDir = '@app/runtime/Smarty/compile';
+
+	/**
+	 * @var string file extension to use for template files
+	 */
 	public $fileExtension = 'tpl';
 
 	/** @var \Smarty */
diff --git a/framework/renderers/TwigViewRenderer.php b/framework/renderers/TwigViewRenderer.php
index e719ef1..d08ec99 100644
--- a/framework/renderers/TwigViewRenderer.php
+++ b/framework/renderers/TwigViewRenderer.php
@@ -20,12 +20,23 @@ use \yii\base\ViewRenderer;
  */
 class TwigViewRenderer extends ViewRenderer
 {
+	/**
+	 * @var string alias pointing to where Twig code is located.
+	 */
 	public $twigDir = '@app/vendors/Twig';
+
+	/**
+	 * @var string alias pointing to where Twig cache will be stored.
+	 */
 	public $cacheDir = '@app/runtime/Twig/cache';
+
+	/**
+	 * @var string file extension to use for template files.
+	 */
 	public $fileExtension = 'twig';
 
 	/**
-	 * @var array options
+	 * @var array Twig options
 	 * @see http://twig.sensiolabs.org/doc/api.html#environment-options
 	 */
 	public $options = array();