How different is your code in this respect from the basic Imaget Targets sample?  i.e. are you doing anything else additionally related to OpenGL ES?

N

I have already tried that and it works fine with the ImageTarget sample and my own targets. The problem with the targets not working with 2.0 is resolved, as you informed me that the Target Manager is updated with version 2.6.

Since I have to upgrade to 2.6 to use new targets, my current problem is that my code works perfectly fine with 2.0, but crashes with 2.6.

It looks very much like something gives a bad access inside the drawVideoBackground() call. Do you have any idea of what I am doing wrong to make this function crash with 2.6? Something must have changed inside this function since 2.0.

Could you please do a test?

Use the Image Targets application and modify it to use your own Targets (.dat and .xml files) - see if it works and if it crashes.

If it does not crash it may help you to narrow down the problem, as I cannot think why it might be crashing at present.

N

Okay, my problem is that my code crashes with a bad access on QCAR::Renderer::getInstance().drawVideoBackground(); if I link against 2.6 (it works with 2.0).

I have the QCAR::Renderer::getInstance().begin() call right before drawVideoBackground() and the begin()-call seems to work just fine, but the app crashes on drawVideoBackground().

What can cause this crash?

Target Manager has been updated with SDK 2.6; so, you need to use the latest version of Vuforia (2.6) with targets databases created with the current Target Manager.