Creative and Technical Director.
Unity - Photoshop - Amplify Shader Editor
Shader/ C# /
This is a very simple and quick implementation, a lot features can be done, or use diferents methods of collision detection.
Trigger collisions can be triggered not only for collision, but you can check collision velocity, collisions tag, increase damage by collision times.
In this particular case, I created a secondary uv2 for the collisions masks for more artistic control. and use the same masks a paint scratch mask