jaime yes I know its not the same, but it is the base for the whole project.
The door is an asset from the SparkAR asset library which you can download and add in your project.
Also if you move towards the door, you can enter inside it. I have added the touch and hold gesture for the user to enter inside the portal easily.
I will share the project with these features in few days :)
jaime
dev
there's not working as well, can you share the project files?