Selecting multiple columns from a subquery

I've searched a lot, but still no chance on having a subquery to return multiple columns all at once. The following code works, but it sucks:

SELECT
     (SELECT Column1 FROM dbo.fnGetItemPath(ib.Id)) AS Col1,
     (SELECT Column2 FROM dbo.fnGetItemPath(ib.Id)) AS Col2,
     (SELECT Column3 FROM dbo.fnGetItemPath(ib.Id)) AS Col3
 FROM ItemBase ib
 

I actually have got no idea how to pass ib.Id to the function and get the entire Column1, Column2, Column3 columns without calling the fnGetItemPath function 3 times.

Thanks in advance

---