[Origami+Quartz Composer]Same animation as Elevate App

Question

i'm new to Origami+Quartz Composer.
I'm trying to replicate the animation the same as Elevate App. here is the animation:

1. Initial State:
   

2. Click Agility Button

3. Here's the animation

The task is to have 2 layer. When we click the button, the second layer shows with a growing, hexagon mask staring at lower left corner of the image. But i don't know how to do it. Any ideas?