Maya 2012 has a Collada exporter that enables you to export .dae files. But unfortunately it can’t be read by the Papervision3D Collada/Dae class as the tags don’t match up.
I found that the best way to fix this problem is to use Autodesk’s standalone FBX 2011 Converter; Instead of Maya –> DAE, we need to export from Maya –> FBX –> DAE.
1) Download and install Autodesk FBX 2011 Converter (http://usa.autodesk.com/adsk/servlet/pc/item?siteID=123112&id=10775920).
2) In Maya, select the objects you want to exort and select File –> Export Selection . Select FBX export as the export file type and hit Export Selection.
3) Open up Autodesk FBX 2011 Converter UI. Drag and drop the .fbx file you just exported to the Source Files window. On the right side of the UI, change the destination format to DAE Collada and hit Convert.
And huzzah, Papervision can import the 3D model created in Maya 2012 :D