question stereo with augmented reality

[Darkmax]

vuzix, i'm trying the wrap 920AR, and it has two cameras built in.

http://www.vuzix.com/consumer/products_wrap920ar.html

also i tried the code you tell and it show a white screen.

this what i tried:

import viz
import VideoVision
viz.go()

#Add ARToolkit extension
ar = viz.add('artoolkit.dle')

#Create camera using first available webcam
leftTexture = ar.addWebCamera()
rightTexture = ar.addWebCamera()
VideoVision.add(leftCam=leftTexture, rightCam=rightTexture)