Live AO and height to normal map/lighting adjustment layer .

Would be so helpful.   I know I can use bevel/embos  filter   to make something like that but it looks so bad , blurry and inaccurate.   Can we just have height to normal map live filter  based on Sobel math   as well as edge detecting . Working on the fly  why  we edit and move around  the layers beneath.   Should be no probalem for modern GPUs.        Or just let us do our own live filters and  adjustment layers based on sbsar.   Current implementation of sbsar  is absolutly useless.