Eg. Chek if cube in 0, 0, 1 is touching a cube in 0, 0, 0 (but not colliding)? In other situations objects might be rotated. I have a snapped object and I need to know is it touching other object.
Simple, use Raycasting to detect objects nearby, play around with it, do this -
- create a simple script raycasting from one side, and return the distance between the object it hits such that you can see, for example use debug.log, play around with it until you find the exact distance you want to compare, i think it would be 0.5, once you get it, then make your script whatever you need to do in it.
- You can also try, renderer.bounds and physics.overlap sphere to make it compact, however raycasting is just basic, as others said, these commands will help more.