BlendShapes Scripting

Follow

Abigail Porier

Snap Lens Network Member Lens Studio Team

• July 03, 2018 16:08

I'm using blendshapes in my face filter and want to trigger the blendshapes on mouth open and mouth closed. Right now, it animates on its own instead of following the position of the face. How do I get the blend shapes to track the facial features instead of moving on their own?

Thanks!

0

• 

  Peter

  Snap Lens Network Member Lens Studio Team

  • July 03, 2018 18:29

  Hi Abigail,

  Lens Studio does not currently support explicit tracking of individual facial expressions, but you can drive blendshapes on your mesh with facial expressions by using a combination of Head Binding objects and scripting.

  The basic set up would look something like this:

  • Disable any animation already playing on the blendshapes
  • Create a Head Binding object that tracks the Chin
  • Write a script that tracks the change in the Head Binding object's position every frame. Use that change in position to calculate the blend shape weights

  If you're interested in learning more about how to set up this project, or how to write the script I described, let me know and I'll be happy to help!

   

  Best,

  Peter

  Comment actions Permalink
• 

  Abigail Porier

  Snap Lens Network Member Lens Studio Team

  • July 03, 2018 21:57

  Thanks! The problem was that I had typed in the incorrect blend ID.

  Comment actions Permalink

Please sign in to leave a comment.