- Add New Subdivision Level
-
Increases the resolution of the model by subdividing
each of the polygonal faces on the model into four smaller faces.
As a result, the number of faces on the model quadruples each time
it’s subdivided. Three subdivision options are possible by selecting
the option box to the right of the menu item:
- Smooth Positions:
Applies a global smoothing operation to the vertices on the polygonal
model each time it is subdivided (based on a Catmull-Clark algorithm).
The default is on.
- Subdivide UVs:
Subdivides the UV texture coordinates associated with the model
for each subdivision operation when turned on. When turned off,
subdivision levels higher than Level 0 do not have UVs applied until they
are required. For example, UVs are applied to a higher level whenever
the user begins to paint on the model. The default is off.
- Smooth UVs:
Applies global smoothing to the UV texture coordinates associated
with the model each time it is subdivided. Smoothing UVs may be
desired if the model is to be subsequently rendered in another application
as a subdivision surface model and it supports a similar UV smoothing algorithm
as Mudbox. The default is off.
NoteThe
Smooth UVs property
was changed in Mudbox 2010 so that smoothing only occurred on the
UVs on the interior of a UV shell and not along its border edges.
If you require the older pre-2010 method where all UVs were smoothed,
the Mudbox 2009 UV smoothing behavior is still accessible by an
environment variable. For more information, see
Environment variables
- Add New Subdivision
Level Options
-
This option menu exists on
Mudbox versions operating on Mac OS X only.
- Step Level Up
-
Displays the next higher subdivision
level on the model, 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 the selection of two faces straddling the center line. Setting
the topological axis is required when using layer symmetry or whenever
you want to sculpt on a model whose pose is asymmetric but is topologically symmetrical.
- Flatten to UV Space
-
Produces a flattened
copy of a 3D model. The vertices on the flattened version are repositioned
to match the UV texture coordinate positions of the original 3D 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 using the Flatten to UV Space feature
and restores the display of the original 3D model. Hotkey: Alt + T.
