Region Cells

Overview

The standard first choice among Region nodes, dividing the canvas into cell-shaped working regions. Process its RegionMap output—intermediate data containing region IDs—with downstream fill, boundary, and merge nodes to build collections of surfaces such as paving stones, rocky ground, or terrain faces.

• Category: Generate / Region / Create
• Use cases: divide water, rock, terrain surfaces, or part candidates into regions before drawing them by hand

Usage tips

• Start with the standard three-part setup: region_cells → region_fill (add colors) + region_border (boundaries). This is the easiest introduction to the Region workflow.
• distance strongly affects the pixel-art texture. Manhattan (default) and Chebyshev create angular, pixel-art-like cracks; Euclidean creates rounder, more natural ones.
• For repeating tile material, enable wrap_x / wrap_y. Regions then connect across edges, reducing seams when tiled.
• See the comparison at the end for when to choose another generator: voronoi is point-centered, bands creates bands, strata creates layers, and noise creates uneven patches.

Related nodes

• region_fill — color the regions, the go-to next step
• region_border — extract boundaries
• region_merge_small — clean up regions that are too small
• region_voronoi / region_bands / region_strata / region_noise — alternative generators

How to use

1. Create a RegionMap with Region Cells.
2. Connect regions to Region Fill to make colored surfaces.
3. If needed, extract boundaries as a separate image with Region Border.

A RegionMap is not an ordinary image; it is intermediate data containing region IDs and region information. Future isometric-specific nodes are intended to use this type's space information for surfaces such as top, left, and right faces.

ID Display is a UI overlay for inspection. It does not change the downstream preview image or the regions data itself.

When horizontal / vertical looping is enabled, opposite edges are treated as adjacent when calculating distance. Use it to create regions that connect when repeated in all directions for a tile map. The loop information is stored in the RegionMap, so downstream nodes for merging small regions, boundaries, grow/shrink, and adjacency also treat opposite edges as adjacent.

When mask is connected, seed points are placed and regions generated only inside the active mask area. Pixels where lightness * alpha >= 0.5 are active. Arbitrary mask shapes do not combine well with edge looping, so horizontal / vertical looping is disabled in the output while a mask is connected.

ID ordering determines how IDs are arranged for downstream use by ID or ID range in Region Mask.

Region Cells is the general-purpose region generator to choose first. It suits workflows that divide the whole canvas into rough working surfaces, then color them, draw boundaries, or merge small regions. For point-centered bubbles or stones, use Region Voronoi; for banded terrain, use Region Bands; for cracked strata or rock faces, use Region Strata; and for natural levels derived from noise values, use Region Noise.