Unity中Vuforia与ARFoundation 5.0兼容问题及临时修复方案

问题现象 #

• 单独使用Vuforia的无代码基础场景时，Image Targets识别功能运行正常
• 接入ARFoundation 5.0后，编辑器内运行场景及Vuforia的Image Targets均正常，但部署到Android设备时，Vuforia无法识别目标

logcat报错信息 #

Error Unity Exception in callback: Object reference not set to an instance of an object.
Error Unity Vuforia.Utility.ExtensionMethods.DelegateHelper:InvokeDelegate(Delegate, Object[])
Error Unity Vuforia.Internal.Core.Engine:OnStart()
Error Unity Vuforia.Internal.Core.Engine:Start(Action)
Error Unity System.Reflection.RuntimeMethodInfo:Invoke(Object, BindingFlags, Binder, Object[], CultureInfo)
Error Unity System.Delegate:DynamicInvokeImpl(Object[])
Error Unity Vuforia.Utility.ExtensionMethods.DelegateHelper:InvokeDelegate(Delegate, Object[])
Error Unity Vuforia.Utility.ExtensionMethods.DelegateHelper:InvokeWithExceptionHandling(Action`1, T)
Error Unity Vuforia.Internal.Core.Engine:InitOnCameraReady()
Error Unity Vuforia.Internal.ARFoundation.<CheckAvailability>d__20:MoveNext()
Error Unity UnityEngine.SetupCoroutine:InvokeMoveNext(IEnumerator, IntPtr)

临时解决方案（针对Vuforia与ARFoundation 5.x兼容Bug） #

• 在XR Origin GameObject上，将XR Origin组件替换为AR Session Origin（忽略弃用提示）
• 配置AR Session Origin组件参数：
  • Camera Offset GameObject 设置为 Camera Floor Offset Object
  • Main Camera 设置为 Camera GameObject
  • Tracking Origin Mode 设置为 Device

内容的提问来源于stack exchange，提问作者ignatiusD