o3djs.utils.makeClients checks that Renderer has been initialized....

samples/o3djs/util.js

 /*
  * Copyright 2009, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 835 matching lines @@
     var chromeWorkaround = o3djs.base.IsChrome10();
     {
       // Wait for the browser to initialize the clients.
       var clearId = window.setInterval(function() {
         var initStatus = 0;
         var error = '';
         var o3d;
         for (var cc = 0; cc < clientElements.length; ++cc) {
           var element = clientElements[cc];
           o3d = element.o3d;
-          if (!o3d) {
+          var status = element.client && element.client.rendererInitStatus;
+          var ready = o3d && status >
+              o3djs.util.rendererInitStatus.UNINITIALIZED;
+          if (!ready) {
             if (chromeWorkaround) {
               if (element.style.width != '100%') {
                 element.style.width = '100%';
               } else {
                 element.style.width = '1px';
               }
             }
             return;
           }
           if (chromeWorkaround && element.style.width != '100%') {
             // The plugin has loaded but it may not be the right size yet.
             element.style.width = '100%';
             return;
           }
-          var status = clientElements[cc].client.rendererInitStatus;
           // keep the highest status. This is the worst status.
           if (status > initStatus) {
             initStatus = status;
             error = clientElements[cc].client.lastError;
           }
         }
 
         window.clearInterval(clearId);
 
         // If the plugin could not initialize the graphics delete all of
@@ skipping 38 matching lines @@
               break;
             default:
               throw 'Unknown engine ' + o3djs.util.mainEngine_;
           }
         }
       }, 10);
     }
   }
 };