Xcode错误：AR参考图像必须具有非零正宽度

Question

Help I'm playing around with ARKit's Image detection and I have no idea why every image I place in the AR Reference folder has an error:

AR reference image 'name' must have non zero positive width

I'm not really sure what that means and I'm not having any luck when I google it.

How do i fix this?

Answer 1

When you add an AR reference image to your asset catalog, you need to add a physical size:

This is necessary for ARKit to locate the image in the user's physical environment — otherwise it can't tell whether the image appears small in the camera image because it's physically small and nearby or because it's large and far away.

Answer 2

It could be because there are some limitations with the software:

• ARKit performs best when the host app is searching for 25 or fewer distinct images in a given environment

• Developers should provide reference images, including information on physical size, to optimize detection

• ARKit does not track changes to the position so precise placement of virtual assets could pose a problem

A separate section covers potential interruptions to the AR experience

Also, please refer see this answer that might reference you into right direction