get_row
  
  Description:
  [ 
Version ( since = 
"1.0" ) ]
public Vec4 get_row (
uint index_)
  
    Retrieves the given row vector at index_ inside a matrix.
    Parameters:
    
      
        | this | a Matrix | 
      
        | index_ | the index of the row vector, between 0 and 3 | 
      
        | res | return location for the Vec4  that is used to store the row vector
           |