Autodesk Materail

[hoppergrass]

I get that each engine believes their implantation is best.

My question still stands, how did you get it to work in Revit? and if that conversion is good enough in Revit why wouldn't it be good enough for Max?

[^Lele^]

I don't think it's "good enough" in Revit either.
Which is why it has V-Ray materials there as well.

[hoppergrass]

It's a dictionary conversion: they write "color" we read it as "diffuse" and so on.
It just happens implicitly.
I'm talking of not being able to match BRDF implementations exactly (some cap glossiness, some have a different gloss multiplier, others entirely different models, we support the whole of the GTR shading domain, most only GGX and on and on and on the list goes...), SSS models, and even volumetric features.
And by match, i mean per pixel, exact.
Some result is always somewhat available (i can plug a texture into the right slot n.p.), it's just what the result will look like which bothers us.
The exact same is valid for *any* conversion, thereby including Corona and the Physical Material Zap created for max.
Models can't be easily adapted, if at all, in between engines and we could be here until the cold death of the universe debating which implementation is the right one for some features (we do it right. no WE do it right!). ^^

personally, I be happy with a basic, close enough conversion.

Frankly the materials in Revit are very poorly setup to start with, in many cases bear no resemblance to the real world finish they are trying to simulate, so a 1:1 conversion would be missing the mark anyway.

[glorybound]

Still an issue. I have three Revit models and the V-Ray converter does nothing to convert them.

[^Lele^]

It's the autodesk converter to physical material first, and then the v-ray converter.
We don't convert those directly, to my knowledge.

[glorybound]

I tried every Autodesk Converter preset and nothing works. There seems no way to go from Revit to V-Ray.

[^Lele^]

would you share one piece of geo for each material which doesn't convert, please?
Also, i assume it's max 2021? Which update?

[glorybound]

https://maxtools.3dzver.ru/vmc - this worked. Here is the file before it was converted using the script

https://drive.google.com/file/d/1aHO...ew?usp=sharing

[^Lele^]

thanks, glad you sorted it.
file has no access.

[glorybound]

It shows that it can be done.

[^Lele^]

There is no doubt it can, particularly if one isn't too hung up on what comes out of said conversion.
I'm still waiting for file access, though.

[glorybound]

Try this one

https://drive.google.com/file/d/1aHO...ew?usp=sharing

[^Lele^]

"Error Loading Autodesk Material Library 2012
Invalid Asset Instance!"
For all shaders. None has an UI, and they are all subbed for a standard gray shader.
Is this the same for you?
I ran max 2021.1, with all the ancillary stuff installed.

[glorybound]

I don't get any errors. Are you looking anywhere to see that?

[^Lele^]

No errors on load, no.
However, if i load any of the multi-sub material present in the scene in the material editor, any of the sub-materials, regardless of class (i.e. type) are without an UI, and only a box with that message in it.
See attached.