How to erase a part of Sprite.

If someone played Worms game, in this game if a bomb explodes near a sprite a circle of that ground in contact with the explosion is removed. Is there any way to do so?

 

here's ready working plugin for it,
https://forum.unity3d.com/threads/released-pixelsurface-efficient-destructible-2d-terrain.367714/

or you can manually draw/erase pixels on textures,
https://docs.unity3d.com/ScriptReference/Texture2D.SetPixel.html (but its bit slow)

 

Thanks! I will look into it.

 

I did it by making the sky a composite collider with void inside and adding to it circle collider at each explosions