How do i make a realtime csg hole maker tool?

https://gyazo.com/03f59515910661d10573baed7fa7a69e
i wanna create something similar to that gif
i been trying for a day now and i just can’t seem to make a tool that makes real time csg spheres that negate walls

If you want to do CSG in real time I would read through this announcement post. Since it goes into detail about doing CSG in game. But the footage you showed suggest more of a voxel based approach which probably wouldn’t be achievable through CSG because of the complexity to allow for physics to work.

i already knew real time csg was a thing
im trying to make a tool that make holes

And yes it does use real time csg in roblox
its using pixel decals and voxels being replicated onto the hole for a smashing effect