Need Help Creating Spherical Grid

Okay, so I'm not sure if this is the right thread for this but oh well.

So basically I'm working on a game in which you will be able to place buildings onto a planet. The only problem is that I need to be able to have the buildings snap to the planet, and rotate away from the planets origin point (so that the buildings are flush with the planets surface).

Is there a simple way to do this, or do i need an advanced script?
Also, could I simply make the faces of the planet act as grid spaces (the planet is low poly so the faces are quite large)?

I use C# BTW.

 

Aligning to a sphere is easy, just match the objects up vector to (objectPosition - sphereCenter)
As for making the surface a grid, that is not easy, theres no 'perfect' solution for mapping a grid to a sphere

 

Could I perhaps just ditch the grid entirely, and just make the buildings allign/stick to the planets surface?

 

For a start, you can probably use

Code (csharp):

1. building.rotation = Quaternion.FromToRotation(Vector3.up, raycastHit.normal);

 

I have a feeling that I need to do a lot more research as far as rotation and vectors go lol. Thanks for the help guys, but I'm not getting anywhere until I learn what all of this stuff does. Can anyone point me towards a good resource to learn about this kind of stuff (rotation, vectors, inheritance, etc.)? I am very new to C# and programming in general