How is the removal of earth during an explosion done in tanks?

Question

Unity

https://www.youtube.com/watch?v=X_Eq-BZqPM0

Answer 1

in short, it is based on something a la Voxel Terrain and / or procedural mesh generation.
how exactly to do all this is for you to google and read a lot, and it’s better right away in English. the answer with an example pulls on the whole project)) and you indicated that the question is simple))