Augmented Reality: Camera Image crackles when using glTexCoordPointer

[cslynge]

Hi,

I am using ARToolKit for iOS to make an augmented reality app for the iphone. Have successfully converted 3D models into opengl and displaying the model when pointing the iphone camera at the AR marker/tag is also working.

The problem is: When having added a texture to the model (also working fine), i call glTexCoordPointer, and now when I point the camera towards the marker, the model is shown with the texture perfectly fitted to the model, but the camera input is crackled in large pixels/squares. To get a better feeling of what I mean, I took some pictures of before and after:

A screenshot before i call glTexCoordPointer


And after:


Hope that somebody have the answer
thanks