This is my best work so far and i am really proud of it.
This effect calculates each pixel and adds a curler to it, which gives an effect like a paint.
Also you will get an opportunity to learn shader code asset and how they work in spark AR.
This is very simple and pretty well managed code and graph patch that you will get.
The effect comes with three blend modes triggered on each screen tap.
Try here : https://www.instagram.com/ar/1507222699483073/
Fully working ready to upload project on instagram with knowledge and learning of shader code asset.