I am currently using Vuforia 6 in Unity 5.4, tried to test the webcam in play mode with both Unity 32 and 64 bits.
I have followed most of the online solutions and still can't get my laptop build-in "BisonCam, NB Pro" webcam showing up in Unity playmode.
At first, WebCamBehaviour script on ARCamera was showing "No Webcam profile has been found for your webcam model".
So, I added code below in the profile xml located at "Assets\Vuforia\Editor\WebcamProfiles\".
<webcam deviceName = "BisonCam, NB Pro">
... code ...
This solved the problem, however when I press play in Unity, the screen was black.
Then, I used WebCamTexture scripts to check if the webcam was found during play mode. It was found.
Anyone have any idea what is wrong with the setup? Appreciate it much!