Hi, i have a problem with world tracking. I want to make a portal in three.js with world tracking. The portal must stay exact location. And i can go inside it. But in zappar’s world tracking when i walk to portal (or any 3d object) its move too. I can walk around the object (it stays) but when ı walk through the object its not stay where it is. It moves too. How can i solve this problem ? Any help please.