One workaround that sometimes works to make it look like the mesh has thicker lines is to use the silhouette settings to make the silhouette lines of the correct color (matching the mesh) and of desired width:
https://www.cgl.ucsf.edu/chimerax/docs/user/commands/graphics.html#silhouettes

But you cannot have silhouettes drawn around some objects and not others (AFAIK), so this is not a general solution.

Cheers,
Alexis

On Thu, Sep 14, 2023 at 9:02 AM Elaine Meng via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:
Dear Zhuangwei Zhang,
Sorry, ChimeraX does not have any way to increase dot size (or line width). 

As I understand it, this is due to changes in OpenGL.  There is an explanation for line width in this previous post, and as far as I know the explanation for dot size is the same:

<https://mail.cgl.ucsf.edu/mailman/archives/list/chimerax-users@cgl.ucsf.edu/message/AYHRRKSR3YTUTC6WYOWWONG3XKSP75E2/>

Instead of showing the surface as dots, maybe you could show it as mesh (although linewidth cannot be increased) or solid using a transparent color.

<https://rbvi.ucsf.edu/chimerax/docs/user/commands/surface.html#style>

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

> On Sep 14, 2023, at 3:50 AM, 18802001045--- via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:
>
> Dear ChimeraX Maintenance Team,
>
> I hope this email finds you well. I am writing to seek assistance regarding an issue I have encountered while working with protein models in ChimeraX.
>
> After performing MPL calculations on protein models, I have found that I am unable to modify the dot size of the resulting surface representation. In Chimera, this task was easily accomplished through the "Model Panel" by adjusting the "MSMS Model Attributes". However, I have not been able to find a similar option or command in ChimeraX.
>
> I would greatly appreciate it if you could provide guidance or suggest a solution to address this matter. Being able to adjust the dot size of the surface representation is crucial for my current research project, and I rely heavily on the functionalities provided by ChimeraX.
>
> Thank you very much for your attention to this matter. I look forward to your kind assistance and prompt response.
>
> Best regards,
> Zhuangwei Zhang, Ph.D.
> State Key Laboratory of Analytical Chemistry for Life Science, Collaborative Innovation Centre of Chemistry for Life Sciences
> School of Chemistry and Chemical Engineering
> Nanjing University
> E-mail: dg21240166@smail.nju.edu.cn


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