Overview
A review-only node that overlays ID numbers on a RegionMap. It is a workbench
for visually determining which ID to specify in nodes such as region_mask and
region_distance, and is not intended for production output.
- Category: Generate / Region / Render
- Uses: choosing IDs for Region Mask, adjusting region area, and inspecting region-splitting results
Usage tips
- Make a habit of connecting this before selecting IDs. It is essential after
region_remaporregion_split_islands, which change the numbering. - The
show_idsoption on generation nodes provides the same review. Insert this node when you need to inspect an intermediate state in a processing chain. - Use
min_areato omit labels when small regions overlap.
Related nodes
region_mask/region_filter/region_distance— production nodes that select IDsregion_remap— a common upstream node that changes numberingregion_info/region_adjacency— numeric region information
Background
| Value | Description |
|---|---|
RegionColor |
Fill each region with a random color |
RegionGray |
Fill each region with a random gray |
Transparent |
Keep the background transparent and draw only ID labels |
Placement
| Value | Description |
|---|---|
Centroid |
Place the label near the region's centroid |
BoundsCenter |
Place the label at the center of the bounding rectangle |
How to use
Connect Region Cells.regions -> Region Debug Preview.regions to show the ID over
each region. Use it before specifying Id or IdRange in Region Mask.
With the default label_style = Overlay, IDs are not baked into the image; they
appear as UI labels over the Inspector preview. Labels overlap easily on small
regions, so use min_area to omit them. Use Font, Tiny, or Small only when
the numbers must be baked into an image.
This node is for review. Use its IDs to configure Region Mask, Region Filter, Region Distance, and similar nodes. For ordinary production output, use Region Fill, Region Pattern Assign, or Region Border.