opencv with vizard 4

[Darkmax]

Ok, i'm experiment with opencv and this what i got:

1) I installed OpenCV-2.2.0-win32-vs2010.exe from the opecv site and i choose to install the system variables for all users.

2) I installed numpy-1.5.1-win32-superpack-python2.7.exe (because it seems that opecv need it)

3) I copy the files of C:\OpenCV2.2\Python2.7\Lib\site-packages to C:\Program Files (x86)\WorldViz\Vizard4\bin\lib\site-packages

4) i tried this code in vizard and it WORKS!!!:

import cv

cv.NamedWindow("camera", 1)
capture = cv.CaptureFromCAM(0)

while True:
    img = cv.QueryFrame(capture)
    cv.ShowImage("camera", img)
    if cv.WaitKey(10) == 27:
        break
cv.DestroyWindow("camera")

The problem is that when i tried this with another code like this one:

import Image
import cv
import viz

viz.go()

def PIL_TO_VIZARD(image,texture):
    """Copy the PIL image to the Vizard texture"""
    im = image.transpose(Image.FLIP_TOP_BOTTOM)
    texture.setImageData(im.convert('RGB').tostring(),im.size)

capture = cv.CaptureFromCAM(-1)#conectate a camara

tex = viz.addBlankTexture([1,1])
quad = viz.addTexQuad(pos=(0,1.8,2),texture = tex)

while True:
    src = cv.QueryFrame(capture)
    dst = cv.CreateImage(cv.GetSize(src),cv.IPL_DEPTH_8U,1)
    cv.CvtColor( src, dst, cv.CV_RGB2GRAY)
    #Convierto opencv to PIL image
    pil = Image.fromstring("L", cv.GetSize(dst), dst.tostring())
    #Aply image to texture
    PIL_TO_VIZARD(pil,tex)
    
    if cv.WaitKey(10) == 27:
        break

When i run this code it consumes me a lot of ram and then it freeze the machine
If anyone has a clue of what maybe is happening