Hello Akash,
Yes, this is all in the "volume" command options.  The "usage" in the help page shows how to use the command, e.g. see the section on mesh display options:
<https://rbvi.ucsf.edu/chimerax/docs/user/commands/volume.html#dispsurf>

Example command, if your map is model #2 ...

volume #2  surfaceSmoothing true  smoothLines true  meshLighting true

See the link above for more options, like how many smoothing iterations, etc.

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


> On Jun 23, 2025, at 4:27 AM, Akash Singh via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:
>
> Hi,
> I'm a researcher from India. I have been trying to make some EM fitting image with model protein. There is no Volume viewer option for Line smoothening, surface smoothening or square mesh to triangle mesh conversion.
> Also surface smoothening problem.
> I have been trying to execute through the command line, but it doesnt work .
> Can you help me regarding command line code for following
> Mesh Line smoothing
> Mesh surface smoothening
> Dim transparency
>
> The suite is ChimeraX or ChimeraX 1.9
>
> Regards,
> Akash Singh