I have no Ltd's, no *'s, no Pentax glass better than SMC-Tak, so I haven't experienced alleged Asahi pixie dust. My lenses that I consider to be p.dusted are mostly German: Isco Westron 35/2.8, Meyer Orestron 50/1.8, CZJ 50/2.8 (Exakta mount, 12 iris blades), Meyer Trioplan 100/2.8 -- and I might consider a Nikkor 85/2 and TDC VIVID Anastigmat 127/3.5 as lightly brushed with p.dust.
But dimensionality comes from proper lighting as much as good optics. And 'rendering' is even more vague than pixie dust, dimensionality, pop, etc. Look it up and see: gargle for
PHOTOGRAPH RENDERING