Wikitude

If I adjust the iOS native example to present a view controller on successful target recognition like: 

- (void)baseTracker:(nonnull WTBaseTracker *)baseTracker didRecognizedTarget:(nonnull WTImageTarget *)recognizedTarget
{
  NSLog(@"recognized target '%@'", [recognizedTarget name]);
  _isTracking = YES;
  
  [self presentViewController:[UIViewController new] animated:YES completion:^{
    sleep(3);
    [self dismissViewControllerAnimated:YES completion:nil];
  }];
}

  I get the following error message: "unable to set renderbuffer storage from drawable".

My example is kind of artificial but the same error occurs with a real view controller.

Do you have any hint for me? Thank you very much for any help.

Hi Andreas,

I made some tests and unfortunately setting the clientTracker to nil results in a crash for me when trying to create a new tracker. The app crashs too if I don't set the old one to nil. Do you have an idea what I might be doing wrong?

I only have this stack trace:

#0 0x000000010071bf14 in wikitude::sdk_foundation::impl::CameraService::newPlatformCameraFrameAvailable(wikitude::sdk_foundation::impl::FrameInfo) ()

#1 0x00000001005c4ed4 in _ZNSt3__110__function6__funcIZZ97-[WTNativeSDKManager cameraPlatformService:didOutputNextCameraFrameWithId:presentationTimestamp:]EUb_E3$_2NS_9allocatorIS2_EEFvRN8wikitude14sdk_foundation4impl13CameraServiceEEEclES9_ ()

#2 0x00000001005c401c in __97-[WTNativeSDKManager cameraPlatformService:didOutputNextCameraFrameWithId:presentationTimestamp:]_block_invoke ()

Hi Andreas,

my first quick tests looked very good, the app does not crash anymore. I think we will wait for the release and everything will be fine.

Thank you for the updates and the great communication, too!

Ole