Hi Elaine,

Thanks for the fast response. It is sometimes hard to distinguish standard chimera from X documentation, so my apologies. I am working with 3D graphics programs to design cover art and obj and mlt files are both required for surface textures AND color information. I will see if I can work with the gltf file, though I know it is not nearly as common as the mlt file. Perhaps in the future the mlt file export can be integrated into ChimeraX as well, as I know standard chimera is being phased out, plus, X has far superior rendering capabilities. If I cannot use the gltf file, I can just generate an equivalent scene in standar chimera and export from there.

Thanks again,

Zack

Zachary Berndsen, Ph.D.
Assistant Professor
Department of Biochemistry
University of Missouri Columbia

From: Elaine Meng <meng@cgl.ucsf.edu>
Date: Sunday, December 3, 2023 at 10:41 AM
To: Berndsen, Zachary <zberndsen@missouri.edu>
Cc: chimerax-users@cgl.ucsf.edu <chimerax-users@cgl.ucsf.edu>
Subject: Re: [chimerax-users] Exporting scene with .obj and .mtl file

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Hi Zack,
You must be looking at the Chimera documentation.  ChimeraX is different, and as far as I know does not save mtl.

There is a detailed description of saving GLTF and OBJ from ChimeraX here:

<https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.rbvi.ucsf.edu%2Fchimerax%2Fdata%2Ftexture-may2021%2Fexport_3d.html&data=05%7C01%7Czberndsen%40missouri.edu%7Cc70b7023d5cb4a12f20008dbf41ec104%7Ce3fefdbef7e9401ba51a355e01b05a89%7C0%7C0%7C638372185151854400%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=VElY0TeZaiJlz19NzEaXNPs2z4ilmVRsQzBLpCZOxTs%3D&reserved=0>

I hope this helps,
Elaine
-----
Elaine C. Meng, Ph.D.
UCSF Chimera(X) team
Department of Pharmaceutical Chemistry
University of California, San Francisco

> On Dec 3, 2023, at 6:08 AM, Berndsen, Zachary via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:
>
> Hello,
>
> I need to export an obj file along with the associated mtl file, however, under the “file > save” option, there is only an option for saving as .obj, not .mtl. I read in the online documentation that there should be the capability to “export a scene” which saves an obj and mtl file, however I do not see this option when using v 1.6.1. Is this still supported?
>
> Thanks,
>
> Zack