Animation with a moving pseudoatom as the surface_carve_selection
With the surface_carve_selection and surface_carve_cutoff settings, the visibility of a molecular surface can be limited to the proximity of an atom selection.
Unlike when showing surface representation only for a subset of atoms, the visibility is controlled on the vertex (surface point) level, not the atom level.
The value of surface_carve_selection must be a named selection (created with select), it cannot be a selection expression (e.g. "chain A" won't work).
Example
Visibility control on the vertex level. Hide surface points which are more than 5 Angstrom away from carvesele:
fetch 1rx1, async=0
as cartoon
select carvesele, organic
set surface_carve_selection, carvesele
set surface_carve_cutoff, 5
show surface
show sticks, carvesele
Compare to visibility control on the atom level. Hide surface for atoms which are more ..→