330767e193
the render origin to be other than (_x, _y) it can update (_rxoff, _ryoff) when it is appropriate to do so, but we don't really need an overridden method to do that. git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@1500 542714f4-19e9-0310-aa3c-eee0fc999fb1