This sample application demonstrates how to use the DeepAR Web to add face filters and masks to your video call using the Vonage Video(formerly OpenTok) Web SDK.

To run the sample:

1. Sign up at DeepAR and create a web project.
2. Copy the license key and paste it to src/index.js (instead of your_license_key_here string).
3. Sign up on https://www.vonage.com/communications-apis/video and either create a new project or use an existing project.
4. Go to your project page and scroll down to the Project Tools section. From there, you can generate a session ID and token manually. Use the project's API key along with the session ID and token you generated.
5. To quickly test the demo go to https://tokbox.com/developer/tools/playground/ on another device (e.g. desktop) to create a conversation room where you can see the feed from test app:
   • On the playground choose "Create new session"
   • Enter your API key
   • Choose latest JS SDK and leave other options unchanged
   • Click "Create" and on the next screen select Connect
   • Now in your session playground screen select "Publish stream" and "Continue" in the next dialog (you don't need to set any options)
6. In src/index.js enter apiKey, sessionId and token.
7. Start the development server by running npm install and then npm run dev.
   • If the browser doesn't open automatically, open http://localhost:8888

Changing tabs usually pauses DeepAR rendering since requestAnimationFrame() will not be called by browsers. To bypass this behaviour, you can call deepAR.setOffscreenRenderingEnabled(true). It will force rendering even when tab is not focused by using it's internal timer. This is not recommended so we turn it off as soon as tab gets focus back.