Nút Đóng Gói các Hải Đảo UV (Pack UV Islands Node)

The Pack UV Islands node rearranges UV islands so they efficiently fill a given UV space. It scales, translates, and optionally rotates islands while keeping a defined margin between them. This is useful for procedurally optimizing UV layouts inside Geometry Nodes workflows, such as generating texture atlases or preparing geometry for baking.

Mẹo

Unlike the UV Editor operator, this node works non-destructively and can be driven by procedural inputs, making it suitable for automated or parametric UV generation.

Đầu Vào (Inputs)

UV

The UV map to pack. The topology of UV islands is determined from this input.

Lựa Chọn (Selection)

Faces to consider when packing islands. Only UV islands that include at least one selected face are affected. UVs belonging exclusively to unselected faces remain unchanged.

Lề (Margin)

The distance to leave between UV islands, expressed in UV space units.

Xoay Chiều (Rotate)

Allow rotating islands to achieve a more efficient packing result.

Phương Pháp (Method)

Determines how the shape of each island is evaluated during packing.

Bounding Box (Khung Hộp Viền):

Uses the axis-aligned bounding box of each island. This is the fastest method but may be less space-efficient.

Bao Lồi (Convex Hull):

Uses the convex hull of each island. This method will not place islands inside holes and provides a balance between accuracy and performance.

Exact Shape:

Uses the full island shape, including concave regions and holes. This produces the tightest packing but is the slowest option.

Đáy Bên Trái (Bottom Left)

The bottom-left corner of the region into which islands are packed.

Đỉnh Bên Phải (Top Right)

The top-right corner of the region into which islands are packed.

Đầu Ra (Output)

UV

The packed UVs, with islands repositioned and scaled according to the node settings.