How to make a filter in which Render Passes are added to a 3d model (Plane Tracker)?

Spark AR Questions
1

I am carrying out a project, in which I want to apply a Render Passes, to my 3d model, which is in the Plane Tracker. By following the steps on the official Spark AR blog Tutorial: Creating a Glow Effect with Render Passes . It’s like my 3d model just disappeared

2

Can you share some screenshots and an example project? It will be easier to say what the issue is.