Is this summary accurate? Using Windows 10 x64, Unity Pro 64 5.5.0f, Vuforia 6.2.6.
* You CANNOT generate builds/runtimes using Vuforia for Windows x86/x86_64
* I haven't tested, but I assume the same goes for OSX and Linux applications.
* Vuforia 6 supports Windows and Unity 64, but only so far as the *Editor* working
* Vuforia can only be deployed on iOS, Android, UWP, and some limited optical pass through devices
Longer discussion here:
I'm attempting to find some clarification on this topic. We are putting together an Android application using Unity 5.5.0f and Vuforia 6.2.6. We assumed that we could also generate Windows runtimes to capture additional subject data during their sessions (multiple instances running on a Windows server, etc). It's proving to be difficult. Whenever I generate a Windows application (x86 of x86_64), the camera background remains black, and the "Tracker fails to initialize".
I'm currently developing using 64 bit Unity inside of Windows 10. Play/Preview/Editor mode *does* work. My searches, probably referring to earlier versions of the software, suggested that only 32 bit Unity worked. I installed 32 bit side-by-side, with same results.
Some other references suggested that Vuforia 6 would support Unity 64. My suspicion is now that applies only to the Editor (that is, Play mode inside of Unity).
The one bit of limited success I've had is installing the full Metro & UWP SDKs, generating that project, building in Visual Studio. At that point, the application does work.
There was also discussion on modifying the provided Vuforia source to support camera initialization w/in the deployed applications, but I'd be willing to wager that's a violation of the TOS, and that this limitation is enforced because of patent licensing issues.