Blackhole mesh stretching effect

[ShadowFox]

I am stuck on a particular item of an effect I’m trying to create. I have an explosion to where rocks are caught in a gravity field around the explosion. I need the rocks to be sucked into the blackhole while stretching toward the center. A friend of mine made something akin to what I want to do, but he did it in blender and neither of us know how to implement it in Unreal.

. I did come across a video of how to make a blackhole effect with a blueprint, but I know there has to be a way to make the stretch happen using Niagara/Material graph