added fps

js/ui.css

@@ -365,6 +365,13 @@ html, body, #x3d_wrapper {
     background-color: red;
 }
 
+#window-info-fps{
+    position:absolute;
+    left: 2px;
+    bottom: 2px;
+    color: white;
+}
+
 #info-wrapper{
     position: absolute;
     left:2px;

js/ui_init.js

@@ -540,6 +540,7 @@ function deep_init(){
             Scene._X3DOM_SCENE_INIT_DONE = false;
         }
 
+        $("#window-info-fps").html(Scene.element.runtime.fps.toFixed(1)+" fps");        
     };
 
 }

viewer.html

@@ -126,6 +126,8 @@ Instructions:
   5. To save the result click upload button (Camera initial position and orientation data) in the menu.' class='edit'></div>
     </div>
 
+    <div id='window-info-fps'>0</div>
+    
     <div id='info-wrapper'>
         <div id='window-error'></div>
         <div id='window-viewinfo'></div>