Dear Hualing, Thanks for your kind words! There are options in the "surface" command for gridSpacing and resolution. Normally if you just use "surface" it will make a molecular surface, but if you use the resolution option, it will calculate a Gaussian surface instead, potentially with lower resolution depending on the value you give. The gridSpacing option affects both molecular and Gaussian surfaces, and again you can give a larger value to get fewer vertices. For a more detailed explanation of these as well as many other options, please see the "surface" command documentation: <https://rbvi.ucsf.edu/chimerax/docs/user/commands/surface.html> The above applies to surfaces calculated for atomic structures. For isosurfaces on density maps, there are options in the "volume" command for controlling the surface mesh: <https://rbvi.ucsf.edu/chimerax/docs/user/commands/volume.html#dispsurf> I hope this helps, Elaine ----- Elaine C. Meng, Ph.D. UCSF Chimera(X) team Department of Pharmaceutical Chemistry University of California, San Francisco
On Aug 29, 2023, at 8:18 AM, HL F via ChimeraX-users <chimerax-users@cgl.ucsf.edu> wrote:
Dear ChimeraX Development Team,
I hope this email finds you well. First and foremost, I would like to express my heartfelt gratitude for developing such a powerful and invaluable tool like ChimeraX. Your dedication to providing the scientific community with a free and versatile platform is truly remarkable.
I am writing to inquire about a technical aspect related to exporting 3D models in ChimeraX. I'm using ChimeraX-1.1.1 to export protein meshes(surface model) into Blender. I've got a problem that the mesh is too smooth which means it has too many vertices. And that makes my Blender run very slow. Is there a way to reduce the subdivision(resolution/vertex number) of the mesh in ChimeraX? Thank you very much!
Looking forward to your reply.
Regards, Hualing <image.png>