I'm planning on doing a couple of my passes on varying render engines. More specifically, hardsurface shading in maxwell, an SSS from mental ray and AOV's from mantra.
Very important that the displacements in these engines match up, but using a 16-bit displacement from zbrush, I'm having trouble figuring out how to do it, since they seems to be pretty much relative to their enviroment. I'm guessing a 32-bit map would make it easier, but there's still the scale factor to worry about and, most importantly i guess, they all slice up the polys differently. With enough polys, that probably wouldn't matter.
So, how would you align the displacement in these cases, and what factors play important roles in the precision of it?