If you are a regular user of PV3D, you’ve probably already seen this, so this notice is for those who may have been away from Papervision for a while (like me). John (aka Superman) Grden has modified Xray to work with Papervision so you can get detailed information on the objects in your scene. While clearly useful for debugging, I can also see numerous opportunitites for using this tool in optimization as well.
Read more about it here and take time to pass only some props to John!
The Algorithmist 