Stack

This panel contains tools for grouping similar islands into stacks.

Panel

Tip

Watch the video explaining how Stack works.

Stack sys properties

Properties

Move Only - Don’t fit Islands. Just move to the same position.
Stack Offset - The offset value. Can be used for preventing auto merging the UV vertices.
Unstack Direction - The Direction where the island will be shifted.

Stack Operator

Collect all similar islands on stacks.

Properties

Selected Only - Collect all islands similar to the selected island and stack them at the location of the selected island.

Simple Stack Operator

Places the islands in the stack, with no respect for their topology.\

Properties

Position Type - The position type where the islands will be placed.
- Average - Averaged islands positions.
- UV Area Center - The center of the UV Area.
- Custom Position - Custom user defined position.
- 2D Cursor - The 2D Cursor location.
Position - The location where stack will be placed.

Simple Unstack Operator

Properties

Mode - The position where the islands will be placed.
- Expand - Expand selected stack using margin.
- Offset - Offset selected stack to the right side.
Offset - The amount by which all islands except the first one will be shifted.
Margin - Distance between the islands.
Use Seams - Use seams as an island separator to prevent stacked islands from self-welding.

Unstack Operator

Shift Islands from Stacks in a given direction.

Properties

Mode - Mode to Unstack Islands
- Global - Unstack all Similar Islands
- Stacked - Unstack Stacked Islands
- Overlapped - Unstack Overlapped Islands
- Selected - Unstack Selected Islands
Only UV Area - Unstack islands located in the UV Area only
Iterative Unstack - Unstack Islands iteratively with moving in given direction
Use Seams - Use seams as an island separator to prevent stacked islands from self-welding
Direction - The unstack direction
Break Stacks - Shift Islands from Stacks by given increment until all of them will be individually placed
Unstack Increment - Is a value that gradually separates stacked elements in incremental steps.

Stack Components

There are 3 different types of Stacked Islands. You can select all of them in this panel.

Primaries

Primaries this is islands which detected as a better instance. The position and the topology from Primaries will be translated to the Replicas. The island is defined as Primary if its position is closer to the center of coordinates, and the distortion of topology is less compared to other similar islands.

Replicas

Replicas are islands that have the same topology but were not chosen as Primary. The position and topology of the Replicas will be changed in the process of Stacking.

Singles

Singles this is islands that have no similar islands.

Select Stack Parts

The operator block for selecting stack components is the only operator with corresponding properties.

Properties

Clear Selection - Clear initial selection.
Mode - Selection mode.
- Select Primaries - Selects the primary islands as the base instances for stacking.
- Select Replicas - Selects the replica islands with the same topology as the primaries.
- Select Singles - Selects unique islands that do not have any similar copies.

Stacks Display and Select

Similar - Display all similar islands. Selecting all similar islands does not make sense, as it would select all islands with copies and their duplicates, resulting in almost every island in the mesh being selected except for the Singles. To select similar islands based on a specific island, use Similar by Selection.
Similar by Selection - Display and select similar islands from selected sslands.
Stacked - Display and select stacked islands.
Overlapped - Display and select all overlapped islands.