[Chimera-users] Capping in VRML

Greg Williams gregoryw at comcast.net
Sat Oct 31 15:01:33 PDT 2020

Oh dear…

It’s distressing that you’ve lost the vrml export. That’s the only workable format I’ve been able to get out of Chimera and into Cinema 4D. 

There is no export in Chimera X that works well with Cinema 4D. I was able to export an obj file of 2bbv. The exported file was 300 mB! I was able to open it in C4D, but there was no content in the open file.

I’ll do the best I can with the older Chimera. I’ve been hoping for several years that you would develop a good export function for modern commercial 3d graphics programs. I guess that’s not going to happen, and now I’ve lost VRML. Oh well….

Thanks for the quick response. 


> On Oct 31, 2020, at 1:22 PM, Elaine Meng <meng at cgl.ucsf.edu> wrote:
> Hi Greg,
> There's no setting like that (and Chimera only uses one material) so I believe it is simply a limitation or bug.  I'll make a ticket for this problem, but note that our group's resources are mainly directed toward ChimeraX these days.
> Can Cinema 4D read any of the other Chimera export formats?
> <https://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/export.html>
> ChimeraX can save glTF, X3D, and some other 3D-object formats, but not currently VRML.  If one of those can be used as input to Cinema 4D, you might want to try ChimeraX instead.
> <http://rbvi.ucsf.edu/chimerax/docs/user/commands/save.html#formats>
> ChimeraX ribbons are calculated differently than Chimera, and there is a tube (curved cylinder) option for helices.  There are some ribbon choices in the Presets menu of ChimeraX, for those who aren't yet experienced with the commands and their options, and there are a few example images here:
> <https://www.rbvi.ucsf.edu/chimerax/features.html#presets>
> I hope this helps,
> Elaine
> -----
> Elaine C. Meng, Ph.D.                       
> UCSF Chimera(X) team
> Department of Pharmaceutical Chemistry
> University of California, San Francisco
>> On Oct 31, 2020, at 11:02 AM, Greg Williams <gregoryw at comcast.net> wrote:
>> When I export a vrml file to process in my Cinema 4D application, the ends of the helices, coils and sheets are capped at the ends with a material that is different then the material I use to color the secondary structure features. In Cinema 4D, I have to change every capped end individually. Where do I change the vrml export settings so that the individual objects are capped with the right material?
>> Thanks!

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