Oh gawd this is gonna conflict with Shyotl..

but you people wanted Render Weight for some reason... so here it is...
Now we'll send it to the server, rejoice.

indra/newview/llappviewer.cpp

@@ -89,6 +89,7 @@
 #include "llcrashlogger.h"
 #include "llweb.h"
 #include "llsecondlifeurls.h"
+#include "llavatarrenderinfoaccountant.h"
 
 // Linden library includes
 #include "llavatarnamecache.h"
@@ -4192,6 +4193,9 @@ void LLAppViewer::idle()
 		gObjectList.updateApparentAngles(gAgent);
 	}
 
+	// Update AV render info
+	LLAvatarRenderInfoAccountant::idle();
+
 	// Execute deferred tasks.
 	{
 		LAZY_FT("DeferredTaskRun");