This is a paid asset, but now you can download Pix – Realtime Per Pixel Modifications for FREE, but please remember this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
Detail this asset from Unity Store: Original Link
Pix – Realtime Per Pixel Modifications v2.0
Dig tunnels, create trenches, create worlds, shoot chunks out of anything or simply: Dynamically change every pixel.
Pix allows powerful per pixel modifications for sprites and colliders.
Simply drop the needed components onto your objects and let all hell break loose.
Create scripts to destroy or create, Pix will automatically update sprites and colliders in realtime.
Pix includes a system to generate endless worlds. The addition of the chunk system allows to generate terrains and levels at any size.
Pix includes several sample scenes to demonstrate how it should be used. All samples include a helpful system to see each important aspect of the system.
A full API documentation is included.
List of things you get when using this asset:
– Edit textures in realtime.
– Edit colliders in realtime.
– Create endless terrains.
– Shatter objects.
– Split objects.
– Dynamically create and remove chunks based upon your needs.
– Full source code.
– Easy to use thanks to the modular component system.
– Fully documented (API, setup, eg.).