live filter/adjustment layer from sbsar

Nowadays I use Photoshop mostly to "fix" height  maps produced by photogrammetry   and need some real time feedback as a normal map or emboss or "lighting"  . Something to visualize 16 bit  height image into something  visually  sounding, representing actual geometry.       Doing it as smart obect is inconvenient as hell because you first have to save  it to see result in other window.  On hi res photogrammetry images it takes forever . 

So please do height-to-normal or "lighting effect" as  adjustment filter or  better sbsar working as live filter  please.    I currently have to use Affinity Photo instead  because it does have such live  filter and would love to do it in Photoshop instead.  I still prefer  Photoshops.  Content aware fill with flip  option and content aware move are much better  than "inpainting"   in APhoto   but inability to see what your are doing untill you hit  "save"  is a killing factor.