How to use eliptical filtering on a maya bump texture?

[doms]

Hi, i can make a MR bump network but i can't seem to get it to line up with the Maya Place 2D Texture node, so what i have done is to use Bump Combiner with a Maya Bump node. The problem i'm having is that there is no texture filtering availible so... How to use eliptical filtering on a maya bump texture? Please.