Tooltip when mousing over a game object?

Questions & Answers
1

I need to have like a tooltip that appears over some objects in my scene when they hover the mouse over them. Is this possible? I see the tuts for doing GUI elements, but these are 3D things. Help!

2

This is what I use:

var toolTipText = ""; // set this in the Inspector

private var currentToolTipText = "";
private var guiStyleFore : GUIStyle;
private var guiStyleBack : GUIStyle;

function Start()
{
    guiStyleFore = new GUIStyle();
    guiStyleFore.normal.textColor = Color.white;  
    guiStyleFore.alignment = TextAnchor.UpperCenter ;
    guiStyleFore.wordWrap = true;
    guiStyleBack = new GUIStyle();
    guiStyleBack.normal.textColor = Color.black;  
    guiStyleBack.alignment = TextAnchor.UpperCenter ;
    guiStyleBack.wordWrap = true;
}

function OnMouseEnter ()
{

    currentToolTipText = toolTipText;
}

function OnMouseExit ()
{
    currentToolTipText = "";
}

function OnGUI()
{
    if (currentToolTipText != "")
    {
        var x = Event.current.mousePosition.x;
        var y = Event.current.mousePosition.y;
        GUI.Label (Rect (x-149,y+21,300,60), currentToolTipText, guiStyleBack);
        GUI.Label (Rect (x-150,y+20,300,60), currentToolTipText, guiStyleFore);
    }
}

Make sure you have a collider on your object and IsTrigger is set. This will make a white-with-black-dropshadow label, no background, that floats around with your mouse pointer.