- Add New Subdivision Level
-
Increases the resolution of the model by subdividing
each polygonal face into four smaller faces. As a result, the number
of faces quadruples each time you subdivide.
Select the option box
next to open the Subdivision Options window.
Options include:
- Smooth Positions
-
When on (default), applies
a global smoothing operation to vertices on the model each time
it is subdivided (based on a Catmull-Clark algorithm).
- Subdivide UVs
-
When on, subdivides the model’s
UV texture coordinates for each subdivision operation. When off
(default), subdivision levels higher than Level 0 do not have UVs
applied until they are required. For example, UVs are applied to
a higher level when you paint on the model. The default is off.
- Smooth UVs
-
When on, applies global smoothing
to the model’s UV texture coordinates each time it is subdivided. Smoothing
UVs is useful if the model will be rendered as a subdivision surface
model in another application that supports a similar UV smoothing
algorithm as Mudbox. Off by default.
NoteSmooth UVs changed
as of Mudbox 2010 so that smoothing only occurs for UVs on the interior of
a UV shell and not along its border edges. If you need the older
pre-2010 method where all UVs are smoothed, the Mudbox 2009 UV smoothing behavior
is still accessible using an environment variable. See MUDBOX2009_SUBDIVIDE_SMOOTH_UV
in
Environment variables.
- Add New Subdivision
Level Options
-
This option menu exists for
Mudbox on Mac OS X only.
- Step Level Up
-
Displays the next higher subdivision
level, if one currently exists.
- Step Level Down
-
Displays the next lower subdivision
level, if one currently exists.
- Delete Highest Level
-
Removes the highest subdivision
level from the active model.
- Recreate Level UVs
-
Creates UVs for the currently
active subdivision level by interpolating the model's UVs at the
base level (level 0), only if UVs exist at the base level.
- Set Topological Axis
-
Calculates and stores
the topological center of a topologically symmetrical model (based
on your selection of two faces straddling the center line). Setting
the topological axis is required for using layer symmetry or if
you want to mirror sculpting on a model that is topologically symmetrical,
but posed asymmetrically.
Sculpt using symmetry.
- Flatten to UV Space
-
Produces a flattened
copy of the 3D model. Vertices on the flattened version are repositioned
to match the UV texture coordinate positions of the original model
to allow texture painting or basic UV editing. The original version
still exists and is made temporarily invisible. Hotkey: Alt + T.
- Unflatten From UV Space
-
Deletes a model previously
flattened by Flatten to UV Space and restores
the display of the original model. Hotkey: Alt + T.
- Transfer Details
-
Transfers high frequency
sculpting detail, joint weighting, and sculpt layers from a high
resolution mesh (the source) to a mesh with different topology (the
target). See
Transfer sculpt detail between meshes.
- Rebuild Subdivision Levels
-
For use on imported,
high resolution meshes that were Catmull-Clark subdivided in other
applications. Recreates lower subdivision levels for the active
mesh. See also
Rebuild subdivision levels for an imported mesh.
NoteThis option works
only on surfaces that have not yet been subdivided in Mudbox. If you
import a high-res mesh, you must recreate the lower subdivision
levels before you subdivide further in Mudbox. Mudbox can un-subdivide
only to the lowest level that is all quads.
