You can use the video of someone's face when they're using the effect as a texture in your scene, by extracting the face tracker texture.
You can then apply the texture to a material and object - for example, to create a face swap effect.
To use the video captured of the entire scene, use the camera texture instead.
You'll see a texture called faceTracker0 in the Assets Panel:
The texture can applied to any material channel. Or, drag it in to the Patch Editor to combine with other visual shader patches.
The texture can be used in 2 different ways:
To select either of these options:
Setting Copy Mode to 3D Direct lets you create a 3D representation of the user's face. You'd generally use this mode when applying the texture to a face mesh, for example in a face swap effect.
To do this:
In this example below, we've set the Copy Mode to 2D Bounding Box. We've then applied it to a material, and applied the material to a plane:
You could use the 2D Bounding Box mode to create 2D animations featuring the user's face.
Start by adding the face trackers:
Then, edit the second face tracker so that it responds to the second face to appear in the scene:
Next, create the face mesh, textures and materials:
The face mesh will have hard edges. To blend these with the face, use the face mesh mask included in the face reference assets.