max2017 - OBJ import with multimat broken?

[danny]

Hi,

Importing OBJ's with multimat textures seems not to be working in max2017, only the first material is imported.

In max2016 this works fine.

Can this be confirmed as a bug?

thx,

Danny

[aon.914858227]

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@danny wrote:

Can this be confirmed as a bug?

thx,

Danny

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I think this was fixed in SP1 even it doesn`t say so in the release notes. I had that with the initial 2017 release but now it works as expected.

[danny]

Thanks for your input, I am actually using Max 2017 SP1.

Maybe it is something about my setup...

May I ask you to test the small attached scene?

scene.max - max2017 testing setup scene with multi materials

OBJ2017.obj - the exported OBJ

> only 1st material gets imported back in 2017, works fine in 2016

Thx!

Danny

[aon.914858227]

Ok, this is what i found so far:

If you export/import obj from 3dsmax it indeed truncates all materials except the first one.(using the example scene you provided)

If i use an external application for exporting obj ( in my case i used Poser/Daz-Studio) it works just fine and all materials are

forming a nice multisub-material in 3dsmax2017.

However if i import into DAZ/Poser from 3dsmax2017 i get all sub-materials but the cube is not visible in the viewports of these applications.

So i guess obj. export is broken in 2017.

Do you agree? Or anyone else?

[danny]

I also tested with DAZ obj exports and same problem >  just 1 material in max2017 (works fine in max2016)

Also with obj's from marvelous designer.

When I export OBJ from max2017 they do seem to work fine in other applications. (tested with max2016 and element3D)
But importing OBJ into max2017 always gives me problems.

Cheers,

Danny

[aon.914858227]

Ok, i`m starting to realize that material handling of .obj import in 2017 works different from 2016.

If you uncheck 'import as single mesh', it no longer creates a multi-sub material for all scene objects.

Instead it creates a material/submaterial of the materials assigned to the specific object only.

Only if you 'import as single mesh' it creates a multi-sub of all objects in the scene (which is the default behavior in 2016)

This rather looks like a well-meant optimization in 2017 than a bug.

[aon.914858227]

Hmm, i still can`t import an object exported from 2017 with multiple mat-id's. Strange.

[ksdd567 · Accepted solution]

I am having the same issue importing. Submitted a bug report back in 4/16. Applied sp1 and still have the issue.

Right now my work around is

Import into 2016

Save as .max file

Merge into 2017

[danny]

Yes, that is also how I manage my workflow for the moment.

Thanks for confirming, hopefully this gets solved in the next SP.

Cheers,
Danny

[aon.914858227]

Switched to .fbx because of this. Hope this get fixed though.

[ksdd567]

Installed Sp2 and this still isnt fixed.

[KarlAkimor]

Has this even been solved? I can not export IDs with OBJ and using Max 2016 certainly makes no sense.

Yes, I know I can export IDs with FBX but in some specific cases I need OBJ