Subdivide
Subdivision >
Subdivide
Description:
The Subdivide (Subdivision
> Subdivide) command will subdivide all active objects one
level. When an object is subdivided it has two elements: an editable control mesh and an
underlying refined mesh. The refined mesh represents the visible object,
but it can't be edited directly. (Use the Refine Control Mesh command if
you want to edit this mesh.) Instead it is edited by making changes to
the coarser control mesh. When an object is subdivided for the first
time, its original geometry is used for the control mesh, and the
refined mesh is a smoothed version of that geometry. An object can be
subdivided multiple times, which results in a smoother refined mesh
which is controlled by the same control mesh.
In Silo you can subdivide anything, whether it be an
object with faces or a sequence of edges used as a line segment.
Many actions, when performed with a subdivided shape, will use the
subdivided mesh rather than the control mesh. These include Create Lathe Object, Create Extrusion Object, Create Path Extrusion, and boolean operations. This allows you to
create a profile for a lathe in rough form, then subdivide (or partial
subdivide) the profile to a desired smoothness, adjusting the shape with
the outer control mesh, then create the lathe with the inner subdivided
object.
Notes:
- When you
subdivide an object several times, each level of the subdivision is
saved in memory, so subdividing a large object several times can use a
lot of memory. When you unsubdivide, the subdivided shapes are
still retained in memory until you alter the object's geometry, allowing
you to go back to the higher level of subdivision without the program
having to recalculate the subdivided mesh.
- Subdivide can be
performed on whole objects only. To subdivide part of an object use the Partial Subdivide command.
- Subdivide will
be applied to all active objects, no matter the selection mode.
- Subdividing an
instance will cause its parent shape to be subdivided.