SphereCasting... Explain to me please

So I'm currently trying to make a 2d fan object that will blow the player about. I found this nifty little Casting function called SphereCasting that sounded pretty much perfect. Thing is it is only returning true on objects that have a sphere collider. This is really confusing to me seeing that the documentation says that it will return true for any collider that is not a trigger. What is going on?

Here's my testing code, if someone can explain to me what I am doing wrong that would be great!

Code (csharp):

1.  
2. if(Physics.SphereCast(transform.position, 10, petTransform.position - transform.position, out hit))
3. {          
4.     Debug.Log("" + hit.collider.name);
5. }
6.  

Thank you in advanced

 

I just ran my own SphereCast and it picked up cubes, capsules, and spheres.

 

Is it pretty much the same as my code above?

 

yep.

question... is there a sphere collider on 'this'? Maybe you keep picking up that collider, because SphereCast grabs the nearest/first collider it reaches.

 

There is no collider on the object with the spherecast script

 

SphereCast only returns the first thing that is hit; SphereCastAll will return everything that is hit. Maybe that's what you're missing?

Also, are you using Unity 3.5 or 4? Someone else posted a bug about sphere colliders in Unity 4 today, so maybe something's wonky with them.