How can I do a precise mesh ot specific object bounding box fit planar projection in Painter?

 With fit projection option like in 3dmax?   Is there any sbsar filter way?   The only idea I have is using position image as UV but Painter bakes only low res position.     Is there any Painter native way?   Also can I make a simple filter  that works on both grey and basecolor .  Should I just put one more filter on basecolor  that do power2.2 ?  Can generic filter have grey input  for everything and  specific input output only for  basecolor?     or should I just do another planar projected UVs on a mesh ?