It hasn’t been communicated much and it’s a shame. Because applying Instagram filters on existing media open so many creative doors!
It’s pretty quick win as it’s only a couple of clicks on Spark AR studio and boom your effect will let content creators to use your effect on their camera roll pictures or videos!
- Open your project on Spark AR studio
- Click « Edit properties »
- Select « Camera and existing media
- Don’t forget to click on « Done » or the update won’t be saved 🥲
Source: Spark AR documentation itself!