Spherical Projection for Set Dressing a Level

Hey there. I’m working on phase one of a small suite of tools to help in the process of set dressing a level.
The first part is a spherical projection blueprint which plops instances of meshes, decals, effects, etc. onto any intersecting geometry.
I’m guessing something like this already exists, but I just wanted to learn a bit more about Blueprints while getting the math to work.
As an interesting side effect, it also can make pretty cool star fields.

Anyway, I posted a quickie video showing its current state. I have a few more things to add and welcome feedback and suggestions.