1. Unfold3D
 1.1 Introduction
 1.2 Commands
2. Unfolding step by step
3. Cutting
 3.1 How to cut ?
 3.2 Where to cut ?
4. Adjusting and packing
5. UNFOLD3D Interface
 5.1 Menus and tools
 5.2 The menu bar
 5.3 The main toolbar
 5.4 The viewport toolbar
 5.5 The edition toolbar
 5.6 Preferences
6. UV Edition
 6.1 Rotation/translation/scaling
 6.2 Pinning
 6.3 Horizontal, vertical constraints
7. Scripting
5. Unfold3D Interface

5.2 - The Menu Bar

Files Menu

Shortcut Item Description
Ctrl+O Load OBJ...

Load a 3D model from a .obj file. This option only loads the 3D geometry information, UV coordinates are not taken into account. When loading a mesh, Unfold3D also performs a validity check on the mesh, and warns you if an error is found. See the rules section for more detail.

Ctrl+R Reload

Reload the information from the current .obj file. Unfold3D will perform the validity check on the imported mesh.

  Load OBJ UV...

Loads a 3D model and its UV coordinates -if any- from a .obj file. Keeps the UV connectivity as described in the .obj file.

Ctrl+S Save OBJ

Writes the computed UV coordinates to the current .obj file.

Ctrl-Shift+S Save OBJ as...

Saves the mesh and UV coordinates in a .obj file.

  Save OBJ 3D as...

Saves the UV coordinates as a 3D mesh. The resulting UV coordinates and connectivity are stored in a .obj file as a flat 3D model.

Ctrl+N Stamp UV in .ps...

Writes the UV coordinates to a .ps file - to import them in a PostScript capable painting software.

  Quit

Quit Unfold3D

Edit Menu

Shortcut Item Description
Ctrl+Z Undo

Undo the last action

Ctrl-Shift+Z Redo

Redo the last undone action.

F1 Select

Select the selection mode of the Edition toolbar

F2 Translate

Select the translation mode of the Edition toolbar

F3 Rotate

Select the rotation mode of the Edition toolbar

F4 Scale

Select the scaling mode of the Edition toolbar

  Preferences...

Change preferences of Unfold3D. See Preferences section for more details.

  Mouse bindings...

Choose the mouse button's effects (selecting edges...)

  Save Preferences

Save preferences for future sessions.

Select menu

Shortcut Item Description
F5 Points

Select the Point edit mode of the Edition toolbar

F6 Edges

Select the Edge edit mode of the Edition toolbar

F7 Polygons (faces)

Select the Poly edit mode of the Edition toolbar

F8 Meshes

Select the Island edit mode of the edit toolbar

Space bar Clear

Clear all the selections

B Edge tool bidirectional

Activate the bidirectional selection mode of the edges

V Edge tool edge-edge

Activate the edge-to-edge selection mode

H Hide selected

Hide all selected submeshes

Shift - H Hide unselected

Hide all unselected submeshes

Unfold Menu

Shortcut Item Description
X Cut Mesh

Cut the model along the selected edges.

Ctrl+X Weld edges

Weld the selected edges back together. If an edge was marked as cut in the imported OBJ file, this will have no action.

  Reset 3D coords

Clears UV coordinates and pastes 3D coordinates instead.

U Auto unfolding

Unfold the mesh with its current cutline and smooth parameters. With this command, Unfold3D will try a certain number of unfolding iterations (see also the Preferences section) and stop when it reaches a satisfying result.

Constraints Menu

Shortcut Item Description
Alt+P Pin

To pin all the points you have selected

Alt-Shift+P Unpin

To unpin all the points you have selected

Alt-Shift-Ctrl+P Unpin all

To upin all the points on your mesh

Alt+H Edge horizontal

Makes selected edges horizontal

Alt+V Edge vertical

Makes selected edges vertical

Alt-Shift+C Clear constrained edges

Remove constraints on selected edges

Alt-Shift-Ctrl+N Clear all constrained edges

Remove all edges constraints

Alt+F Freeze

Freeze a position of the mesh

  Update off

Simple edition of the mesh, without recalculation of the whole mesh when you do a change on it

  Update on

Update of the whole mesh for each change (translation/rotation/scaling)

  Update real time

Update of the mesh in real time for each move of points or edges

Adjust Menu

Shortcut Item Description
K Adjust

Try to reduce the surface stretching of the UV mapping. See the adjusting section for more details.

Ctrl+K Settings...

You can set manually the tightness of surface adjusting. Values below 1 mean more precision but more computations too, values greater than 1 give faster adjusting but less precise results.

Pack Menu

Shortcut Item Description
P Pack

Place the charts of the UV mapping to minimize the wasted space in texture space. See the packing section for more details.

Ctrl+P Settings...

Change the settings of the packing operation. See the packing section for more details.

Tools

Shortcut Item Description
I Mesh Informations

Displays informations about the mesh (number of polygons, stretching...) in the log console.

  Import UV coordinates

If the mesh was imported with its UVs (Files->Load OBJ UV...), reload the UVs from the OBJ file.

Ctrl+E Export mesh infos

Save the mesh information in a text file.