Default Corona Material Displacement Distance

[NikaNikitina]

Loving the addition of the material library. However, I am running into some displacement hiccups. There are a number of materials that have displacement on where the max level is set to something ridiculous, for instance, 2' for a roughen concrete or same for the dirt. This slows down the IR drag and drop process significantly because I am then having to detour through the material editor to change those values. Trying to figure out if this is user error on my part, if the values are just wrong, or are dependent on unit settings within my scene.  Thanks!

[romullus]

Unfortunatelly, it's 3ds max's limitation - materials aren't aware in what system units they were created. If author was working in millimeters and you're working in inches, there's always be mismatch in parameters that are expressed in system units. The only solution would be to have multiple versions of same materials for different system units.

[NikaNikitina]

That makes sense. I am guessing this is the reason the mapping is also set to 1x1 vs using units. Thanks for the answer!

[PROH]

Yes, this is due to Max, but testing for example Autodesk Materials, one can see that it is possible to make the material values change accordingly to the system unit.

However for now, it might be worth noting, that all Corona materials are made for system unit set to millimeter - giving the user a chance to convert the values manually without to much guesswork.

BTW - does anybody know what system unit Corona SkinMtl are made for? It seem to be cm. is that correct?

[Juraj]

system unit set to millimeter

But whyyyy ?

I don't plan to use them, but system units=mm belong to Seven Hells. There is never any reason in universe for this choice.

And yes, f*** 3dsMax system unit transition. How on earth can something so trivial be problematic will never go through my head. (and person who invented adjustable system units belongs to hell too)

[PROH]

Can't tell you why (I didn't make them), but that's how it is...

[romullus]

Yes, this is due to Max, but testing for example Autodesk Materials, one can see that it is possible to make the material values change accordingly to the system unit.

WTF is Autodesk materials? :] It's nice to know, that in principle it's possible, but that probably would require changes to every material node and for some reason even autodesk doesn't expand that outside those obsolete materials. Autodesk Bitmap my ass, can a sane person use that piece of crap?!

I don't plan to use them, but system units=mm belong to Seven Hells. There is never any reason in universe for this choice.

That could be cultural preference. I know that majority of russians use millimiters as a system units, even if they work on a city block size scenes. Every model from 3dsky comes in millimiters :]

Different system units might be a necessary evil, but it should be handled under the hood, completely transparent to the end user. Oh well, Autodesk...