Find out needed sphere radius to cover a collider

Questions & Answers
1

Basically, I have a game object with several primitive colliders attached to it (sphere, box, capsules…). And then, if I place a sphere at the, for example, rigidbody mass center of this game object, I want to find out, what radius does the sphere need to have, to envelope the game object (all its colliders) completely. So that all of the game object’s colliders are completely inside of this sphere.

Thank you

2

See this

http://docs.unity3d.com/ScriptReference/Renderer-bounds.html

But beware; This appears to be in world space whereas the centre and radius variables of a SphereCollider are local according to the docs.

The Bounds page is most useful.