4. Adding Final Touches & Polishing Your Lens

In this tutorial, you will learn how to elevate your AR project from a basic prototype to a polished, immersive experience. We will focus on the refined details—lighting, audio, and multi-user support—that make a Lens feel professional and responsive to the user.

By the end of this tutorial, you will be able to ...

  • Apply Face Retouch for a polished, professional aesthetic.
  • Configure Multi-Face Tracking so your Lens works for groups.
  • Integrate Audio Components to create an immersive environment.

Materials

Estimated time: 1 hour

Step 1: Create

To begin, build a base Lens using what you learned in Tutorial #2. When you are finished designing your base lens, you will use it to apply Face Retouch, Multi-Face tracking, and Audio. These features ensure your Lens looks high-quality, works for groups of friends, and sounds as good as it looks. Remember to be creative and not worry about making it perfect, since it's only a draft.


  1. 👻 Open the Lens Studio software.
  2. 🛠️ Build your base Lens using a Face Mask or Face Mesh (like you used for Face Paint and Distort in Tutorial #2).
  3. 👻 Find and open the Face Retouch, Multiple Faces, and Audio Templates.
  4. Apply a Face Retouch object from the Objects panel to give your user a polished look.
  5. 👥 Configure your Lens for Multiple Faces by duplicating your face effects and changing the Face Index to "1" in the Inspector.
  6. 🔊 Add Audio to your project by importing an MP3 or WAV file and using the Audio Component.
    • Note: Ensure any audio you use is publicly available or license-free. Do not use copyrighted music or sounds without permission.
  7. 👻 Spend a few more minutes finishing up your Lens and trying it directly on your Snapchat app!
  8. 💬 If you have any questions, try these resources or submit your question on the Unit #4 Padlet
  9. 💻  Save your progress on your computer.
  10. 📤  Save a screenshot of your Lens as a .PNG to upload to the on the Unit #4 Padlet. (If you'd like, you can also preview the lens and save a video copy.)

Step 2: Test

Next, you will ask for meaningful feedback from a real-life user.


1. 🤳 Find a friend or family member who is willing to try your new Lens. This person is now your “user.”

2. ✏️ After they have tried it out, ask them the following questions on the Meaningful Feedback Worksheet and record what they say in your journal.

  • I LIKE: What aspects of the idea did you like?
  • I WISH: What aspects of the idea do you wish were different?
  • I WONDER: What are some other directions for consideration?
📎  Meaningful Feedback Worksheet

3. 👻 Modify your Lens based on the feedback that your user gave you.

Step 3: Share

That’s an awesome new Lens you made there! Make sure you share it with the rest of the AR Lens Challenge community.

1. 🤳 You can upload the screenshot (.PNG) of your Lens to the Unit #4 Padlet

2.✏️  In the caption of your photo, write your answer to the following question: 

  • What was it like receiving feedback from your user?
  • What did you learn by receiving feedback from your user?
💬  Unit #4 Padlet