How to create overlay material at one object like Projector component?

Hi! I just want to multiple overlay material at one object renderer. If i create Projector, and direct this on object, happent what i want. But i need to do this without Projector:

They’re called Decals Here’s a simple free one. Unity Asset Store - The Best Assets for Game Making

It’s a fairly complicated thing to do really well, so every solution has some caveats.