Creating custom face tracking model for augmented reality use in ARKit Thread

Hello everyone,

I want to create a custom face tracking mask in Unity using ARKit.

I am following the instructions in this link:

Blogs.unity3d.com

I got the thing set up and running but I would like to create my own custom avatar mask.

Is there any tutorial or resource that can help me create my own custom mask model and plug it into the face tracking system?

Thank you very much!