Increase accuracy/polygon count of exported meshes (VRML)

[21347]

Currently, exported meshes (e.g. in VRLM) look quite "blocky" when imported in other software (e.g. Blender or Cura for 3D-Printing).

The image below shows a C₆₀ molecule with an additional volume - both are quite blocky.

Or, to put it that way: is there already a way to change that? So far I didn't find any setting, neither in the Wiki nor by browsing the source.

[21347]

Ok - sorry, I just realized that the source files for the volumes seem not to be of higher acuracy, obviously it's just not as "visible" in the shaded view of PyMol compared to Blender's display.

This basically only leaves atoms and sticks as possible candidate for improvement. If their acuracy is also dependent on the source file and cannot be improved by PyMol itself, this issue can be closed I think.

[speleo3]

You could try the map_double command: https://pymolwiki.org/index.php/Map_double

Stick quality seems fix for VRML export, but COLLADA export takes settings like stick_quality into account. Note that for Blender, you might need to remove the <unit> tag from the .dae file before importing it.

[21347]

Thank you, that increases the polygon count, yes. COLLADA export also creates higher quality representation of the sticks, though for some reason I cannot get the atoms displayed, too. I'll check with some low-atom count Molecule later, but that's maybe a different issue.

However, I found a work-around for the initial problem in Blender: Collapse all points of the individual meshes by distance (to remove duplicates created by exporting individual triangles), smooth and subdivide.

So, from that point of few: issue resolved, I have to learn how to get higher quality data.