function DrawTextY(pos, text, airheight, color, size)
    local transform
    local angle = Angle( Camera:GetAngle().yaw, 0, math.pi ) * Angle( math.pi, 0, 0 )

    local text_size = Render:GetTextSize( text, size )

    transform = Transform3()
    transform:Translate(pos)
    transform:Rotate(angle)
    transform:Translate( -Vector3( text_size.x, text_size.y, 0 )/2 )

    Render:SetTransform(transform)
    Render:DrawText(Vector3(0,airheight,0), text, color, size)
    Render:ResetTransform()
end