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What's New in Autodesk Mudbox 2019

The following are features for Mudbox 2019.

Preserve Volume option

A new option, Preserve Volume, has been added to the Advanced properties from the Smooth tool so you can stop it from degrading the mesh excessively. This option is useful when working with dynamic tessellation if you want prevent the Smooth tool from reducing the triangulated mesh volume too quickly.

This new behavior is off by default so you can use the Smooth tool to reduce and shrink the mesh volume. If you want the new behavior, where the mesh volume is maintained and cannot be degraded, activate this setting in the Sculpting tool properties (under the Advanced heading).
Note: The effects of Preserve Volume is less effective on low-polygon meshes.

Compare the effects without and with Preserve Volume in the animations below:

Without and With Preserve Volume

Dynamic Tessellation fixes

Dynamic Tessellation now supports UVs, Selection Sets, Joint Weights, and Falloff Type.

Previously, if any of these elements existed, they were ignored when Dynamic Tessellation created the new triangulated mesh copy. Now, Dynamic Tessellation includes these elements when the triangulated copy is created.

Selection Sets
Now, when you sculpt on a surface with the sculpting tools “Tessellate” option enabled, Selection Sets are maintained. This means that new topology on the triangulated mesh copy is a part of a Selection Set if the surrounding faces on the original were also part of a set.
Existing Selection Sets are copied from the original mesh to the generated tessellation mesh and appear identical, except that they are triangulated.
Joint Weights
Likewise, if a tessellated mesh is created from a mesh that originally had joint weights, these weight values are now copied to the new mesh as well. And this weighting is retained when sculpting on it using any tessellation-enabled sculpting tool. Any new faces created take the weighting from surrounding faces (or use none if there was no weighting).
PTEX
Dynamic tessellation is not supported on meshes with PTEX. If you use dynamic tessellation either through the Mesh menu, or by using tessellation-enabled sculpting tools, on a PTEX mesh, a triangulated copy of the mesh is created, but it has no UVs.
UVs
Now, UVs on the original model are retained, and duplicates of the UVs are added to the new triangulated mesh, and when you sculpt on a surface with a tessellation-enabled sculpting tool, UVs are generated (or removed), the same way as new faces are generated (or removed) on the original mesh surface while sculpting with tessellation-enabled sculpting tools.
Note: If you experience problems when collapsing edges on a tessellated mesh, delete UVs from your model before working with the Reduce, Refine, or Remesh tools.
Falloff Type
Dynamic Tessellation now uses the current Sculpting Tool Falloff Type, so that you can set the way Tessellation affects the mesh surface. This way, it works together with the selected sculpting tool so that faces within the Falloff range are tessellated and faces outside are not.
There are three choices of how the brush determines the range of the Tessellation effect:
Surface
Brush distance measured from the center point outward, searching for vertices until it reaches the end of the surface or the edge of the brush radius, whichever comes first.
Volume
Brush distance measured by drawing a line from the center of the brush to each vertex within the brush radius, to determine where to tessellate. Volume falloff affects one mesh with separated parts, if they are within the brush radius.
Volume/Surface
Brush distance measured by the brush moving along the surface, searching for vertices until it reaches the end of the surface or the edge of its radius, whichever comes first.

Combine Meshes

A Combine Meshes option in the Mesh menu lets you merge multiple meshes into a single object that contains all of the faces.

Press + (plus sign) to combine two selected meshes

In previous versions of Mudbox, there was no way to combine more than one mesh into a single object without exporting to another software package. This is effectively the opposite of Separate Selection.

Separate Selection

A new feature, Separate Selection, has been added to the Mesh menu so you can separate compound objects into multiple objects within Mudbox.

Press - (minus sign) to separate two selected meshes

Previously, dividing objects this way required that you export the object to another 3D package to do this work. This is effectively the opposite of Combine meshes.

Stamp Offset

A new property, Stamp Offset, has been added to all relevant sculpting tool properties to let you fine-tune the depth of a stamp imprint on a model's surface.

Stamp Offset comparison: Default and set to 0.50

The default value is 0.00, which means that black areas of the stamp image make no surface impression, and the deformation strength increases until it reaches white. A Stamp Offset value of 0.50 means that black areas of the stamp image indent the model's surface with -50% deformation, continuing until it reaches a +50% elevation in the white areas.

Delete UVs

Now, you can cut down the number of UVs on your geometry while still in Mudbox, where previously you had to go to Maya or 3ds Max. The new Delete UVs feature gives you a way to remove UVs from your mesh from the UVs & Maps menu.

Smooth Curve hotkey

The Shift key now works to smooth curves while using any of the curve tools, the same way you use it to smooth vertices.

Additional Patch tool behavior

Patch: Patch meshes without holes

An updated Patch tool now lets you remove parts of a mesh without needing a hole or border faces in the tessellated mesh. Now you can use the Patch tool to remove parts of a mesh without leaving a hole. So now, depending on what you select, the Patch tool reacts to the kind of selection.

If you select:

  • A fully enclosed loop of border edges or faces: the hole in the loop is closed. (The same behavior as earlier versions)
  • Interior faces with no border edges: the selected faces are deleted and patched with triangle faces. (The new behavior)
  • Border edges or faces that do not form a fully-closed loop: nothing is done. (The same behavior as earlier versions)
  • Multiple distinct groups of interior faces (for example, the four legs of a cow): Mudbox moves through each selection, deleting the selected faces and filling the holes with patches of triangle faces. (The same behavior as earlier versions).

The keyboard shortcut for the Patch tool is P.

Updated hotkey list

The Mudbox keyboard shortcut list has been expanded to include functionality that previously existed but have not been assigned keys. This way, you can use the Hotkey editor to give these functions a key designation, for example choosing 6 to be the keyboard shortcut for the Blur tool.

Additional and improved tooltips

In an ongoing effort to simplify the Mudbox interface, a number of new tooltips have been added to the user interface. Further, the information on many of the existing tooltips has been clarified.

Gamma Correct Blending

The Gamma Correct Blending in the Advanced section of the Paint Tools Properties is now on by default. This feature, introduced in Mudbox 2018 update 2, blends colors before doing gamma correction when texture painting. This type of blending eliminates the dark edges that used to appear where colors intersected, for example, when you painted green over red.

Disabling this option will make the edges between overlapping paint areas dark.

Better support for 4k monitors

Mudbox has improved the experience for people using high-resolution monitors by providing support for Interface Scaling. Interface Scaling lets you use a different scaling method for 4K or Retina monitors, which previously would display fuzzy, aliased, text and icons. Interface Scaling appears in the Mudbox Setup window the first time you launch Mudbox so you can set the resolution that works best for you setup. You can always switch this setting in the User Interface Preferences. (The default setting is 100%.)

Example: Hi-res icon for the Smooth tool

Also, to further improve the Mudbox interface for higher resolution, graphic elements such as icons, tools, and shelves have been updated so they are distinct and better-defined.
Note: The Mudbox documentation will be incrementally updated to reflect these changes; some illustrations and animations in the Help may depict older interface elements but no behavior has changed.

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