Modifica

After unwrap, you will likely need to arrange the UV maps, so that they can be used in texturing or painting. Your goals for editing are:

  • Stitch pieces (of UV maps) back together.

  • Minimize wasted space in the image.

  • Enlarge the faces where you want more detail.

  • Re-size/enlarge the faces that are stretched.

  • Shrink the faces that are too grainy and have too much detail.

With a minimum of dead space, the most pixels can be dedicated to giving the maximum detail and fineness to the UV texture. A UV face can be as small as a pixel (the little dots that make up an image) or as large as an entire image. You probably want to make major adjustments first, and then tweak the layout.

Transform

Riferimento

Editor

Editor UV

Modalità

Modalità Modifica

Strumento

Toolbar ‣ Move, Rotate, Scale, Transform

Menu

UV ‣ Transform

  • Move G

  • Rotate R

  • Scale S

  • Shear Shift-Ctrl-Alt-S

Axis Locking

Transformations can be locked to an axis by pressing X or Y after one of the transform tools. Also, holding the MMB will constrain movement to the X or Y axis.

Mirror

Riferimento

Editor

Editor UV

Modalità

Modalità Modifica

Menu

UV ‣ Mirror

Scorciatoia

Ctrl-M

UVs can be mirrored on the Y axis or the X axis:

  • Mirror X

  • Mirror Y

You can also use the hotkeys X or Y, or hold the MMB and drag in the mirror direction.

Copy Mirrored UV Coordinates

Riferimento

Editor

Editor UV

Modalità

Modalità Modifica

Menu

UV ‣ Copy Mirrored UV Coordinates

Copies UVs from one side of the mirrored mesh to the other. Affects only selected vertices (on both sides).

Axis Direction

Positive/Negative

Precision

Tolerance for finding vertex duplicates.

Aggancio

Riferimento

Editor

Editor UV

Modalità

Modalità Modifica

Menu

UV ‣ Snap

Scorciatoia

Shift-S

Snapping in the UV Editor is similar to Snapping in 3D. For the snap to pixel options to work an image has to be loaded.

Selected to Pixels

Moves selection to nearest pixel. See also Snap to pixel above.

Selected to Cursor

Moves selection to 2D cursor location.

Selected to Cursor (Offset)

Moves selection center to 2D cursor location, while preserving the offset of the vertices from the center.

Selected to Adjacent Unselected

Moves selection to adjacent unselected element.

Cursor to Pixels

Snaps the cursor to the nearest pixels.

Cursor to Selected

Moves the Cursor to the center of the selection.

Merge

Riferimento

Editor

Editor UV

Modalità

Modalità Modifica

Menu

UV ‣ Merge

Scorciatoia

M

At Center

Moves selected UVs to their average position.

At Cursor

Moves selection UVs to 2D cursor location.

By Distance

Merges selected UVs within the specified Merge Distance.

Split

Riferimento

Editor

Editor UV

Modalità

Modalità Modifica

Menu

UV ‣ Split

Scorciatoia

Alt-M

Selection Y

Splits (disconnects) the selection from the rest of the UV. The border edge to any non-selected elements are duplicated.

Note that the «copy» is left exactly at the same position as the original, so you must move it to see it clearly.

Unwrap

Riferimento

Editor

Editor UV

Modalità

Modalità Modifica

Menu

UV ‣ Unwrap

Scorciatoia

U

Blender offers several ways of mapping UVs. The simpler projection methods use formulas that map 3D space onto 2D space, by interpolating the position of points toward a point, axis or plane through a surface. The more advanced methods can be used with more complex models, and have more specific uses.

Pin & Unpin

Riferimento

Editor

Editor UV

Modalità

Modalità Modifica

Menu

UV ‣ Pin/Unpin

Scorciatoia

P, Alt-P

You can pin UVs so they do not move between multiple unwrap operations. When Unwrapping a model it is sometimes useful to «Lock» certain UVs, so that parts of a UV layout stay the same shape, and/or in the same place. Pinning is done by selecting a UV, then selecting Pin from the UVs menu, or the shortcut P. You can Unpin a UV with the shortcut Alt-P.

Pinning is most effective when using the Unwrap method of UV mapping, for organic objects. An example is when you are modeling a symmetrical object using the Mirror Modifier. Some of the UVs on the mirror axis may be shared across the mirrored counterparts. You could pin the UVs that correspond to the midline, then align them on the X axis, and they will stay in that location.

Pinning also work great with the Live Unwrap tool. If you pin two or more UVs, with Live Unwrap on, dragging pinned UVs will interactively unwrap the model. This helps with fitting a UV island to a certain shape or region.

Mark/Clear Seams

Riferimento

Editor

Editor UV

Modalità

Modalità Modifica

Menu

UV ‣ Mark/Clear Seam

See Cucitura.

Seams from Islands

Riferimento

Modalità

View mode

Menu

UV ‣ Seams from Islands

Adds seams at the boundaries of existing UV islands. This is useful when modifying the UVs of already unwrapped meshes.

Pack Islands

Riferimento

Editor

Editor UV

Modalità

Modalità Modifica

Menu

UV ‣ Pack Islands

Scorciatoia

Ctrl-P

The Pack Islands tool generates an optimized UV layout with non-overlapping islands that tries to efficiently fill the Texture Space.

First it will uniformly scale the selected island, then individually transform each island so that they fill up the UV space as much as possible.

Pack to

The UDIM grid to pack UV islands into.

Closest UDIM

Pack islands to closest UDIM.

Active UDIM

Pack islands to active UDIM image tile or UDIM grid tile where 2D cursor is located.

Ruota

Allow islands to be rotated to possible get a tighter fit.

Margine

The target empty space between islands.

Average Island Scale

Riferimento

Editor

Editor UV

Modalità

Modalità Modifica

Menu

UV ‣ Average Island Scale

Scorciatoia

Ctrl-A

Using the Average Island Scale tool, will scale each UV island so that they are all approximately the same scale.

Minimize Stretch

Riferimento

Editor

Editor UV

Modalità

Modalità Modifica

Menu

UV ‣ Minimize Stretch

Scorciatoia

Ctrl-V

The Minimize Stretch tool, reduces UV stretch by minimizing angles. This essentially relaxes the UVs.

Stitch

Riferimento

Editor

Editor UV

Modalità

Modalità Modifica

Menu

UV ‣ Stitch

Scorciatoia

V

The Stitch tool, will join selected UVs that share vertices. You set the tool to limit stitching by distance in the Regola Ultima Operazione panel, by activating Use Limit and adjusting the Limit Distance.

Align

Riferimento

Editor

Editor UV

Modalità

Modalità Modifica

Menu

UV ‣ Align

Scorciatoia

Shift-W

Straighten

Auto, X, Y

Align

Will line up the selected UVs on the X axis, Y axis, or automatically chosen axis.

Auto, X, Y

Show/Hide Faces

Riferimento

Editor

Editor UV

Modalità

Modalità Modifica

Menu

UV ‣ Show/Hide Faces

  • Reveal Hidden Alt-H

  • Hide Select H

  • Hide Unselect Shift-H

Export UV Layout

Riferimento

Editor

Editor UV

Modalità

Modalità Modifica

Menu

UV ‣ Export UV Layout

If you are using an external application, you need to know where on the mesh you are painting.

Nota

This is an add-on activated by default.

Modifica Proporzionale

Riferimento

Editor

Editor UV

Modalità

Modalità Modifica

Intestazione

Proportional Editing

Menu

UV ‣ Proportional Editing

Scorciatoia

O

Proportional Editing is available in UV editing. The controls are the same as in the 3D Viewport. See Proportional Editing in 3D for a full reference.

UV Options

Riferimento

Editor

Editor UV

Modalità

Modalità Modifica

Menu

UVs

Live Unwrap

Continuously unwraps the selected UV islands while transforming pinned vertices. Note, this is different than the Live Unwrap option in the 3D Viewport.

Snap to Pixels
Disabilitato

UVs will not be snapped.

Corner

Will force the UVs to snap to the corners of the nearest pixels of an image if loaded.

Centro

Will force the UVs to snap to the center of the nearest pixels of an image if loaded.

Constraining to Image Bounds

For standard textures, this option prevents UVs from being moved outside the 0 to 1 UV range. For UDIMs textures, this option prevents UVs from being moved outside the nearest UDIM tile.

Vista 3D

Rotate UVs

Riferimento

Editor

Vista 3D

Modalità

Modalità Modifica

Menu

Face ‣ Face Data ‣ Rotate UVs

The orientation of the UV texture is defined by each face. If the image is, for example, upside down or laying on its side, use the Face ‣ Rotate UVs (in the 3D Viewport in Face Select mode) menu to rotate the UVs per face in 90-degree turns.

Reverse UVs

Riferimento

Editor

Vista 3D

Modalità

Modalità Modifica

Menu

Face ‣ Face Data ‣ Reverse UVs

The Face ‣ Reverse UVs tool mirrors the UVs per face, which flips the image over, showing you the image reversed.