ARKit - Spirited Away

Inspired by the animation movie, Spirited Away, where Chihiro and her parents enters the spirit world through the gate of an abandoned amusement park. This project features in mixing a parallel world with our reality.

A lot of people do an entirely different world inside a portal with a fully rendering skybox, but I wanna have another dimension running parallel to the current one. I thought it would be easy, but it was not. And then I found out tutorials from Pirates Just AR. He used a technique with shaders called stencils.

Add Stencils Shaders

Get Particles shown through Portal

Try to Add the Spirit World

Some Testing

It works with particles. However, when I tried to get inside the gate, the gate moved with me.
I added a plane to receive shadow of virtual objects, but it still looked so fake.