Meta patents group video effects that change when you interact with them

1. A computer-implemented method comprising: causing presentation of a first list of group effects via a first participant computing device and a second list of group effects via a second participant computing device, wherein the first list of group effects is different than the second list of group effects, wherein the first list of group effects comprises both a pre-existing group effect from a standard list of group effect options and a custom group effect that was previously created by a user of the first participant computing device; detecting, on the first participant computing device, a selection of a first group effect from the first list of group effects during a real-time communication session comprising a first video stream from the first participant computing device and a second video stream from the second participant computing device; generating a first participant mask based on the first video stream and the first group effect; receiving a second participant mask in combination with the second video stream from the second participant computing device; generating a group effect display based on the first group effect, the first participant mask, and the second participant mask; detecting an interaction event in an area of the first participant mask; determining that the interaction event satisfies a state-change condition for the first group effect; in response to the interaction event satisfying the state-change condition, updating the first group effect from a first state to a second state; and causing the group effect display to transition from presenting first foreground display content associated with the first state to presenting second foreground display content associated with the second state.