🟥 CR Simple Binary Pattern

Type 10101, get a black-and-white pattern image. That's the entire idea, and it's weirdly handy. CR Simple Binary Pattern reads a string of 1s and 0s and paints it as a grid where 1 is one color and 0 is the other - a quick way to hammer out a checkerboard-ish mask, a tileable graphic, or a structured black/white input without opening an image editor.

It's the stripped-down member of Comfyroll's binary-pattern pair. If you want colors, outlines, jitter, and all the trimmings, that's the full CR Binary Pattern. This one is deliberately just: string in, B/W image out.

How it works

It parses your binary_pattern string and lays it out as a grid on a canvas of the size you set - each cell filled based on whether that position is a 1 or a 0. Pure PIL, no model, instant. A multiline string lets you define rows, so you can sketch a whole 2D pattern rather than a single repeating row.

The inputs and outputs that matter

• binary_pattern (multiline STRING, default 10101) - your 1s and 0s. Use multiple lines to build a 2D grid.
• width / height (INT, default 512) - the output canvas size.

Output is a single IMAGE (plus the show_help string, which you can ignore) - feed it to a preview, a mask conversion, or use it as a base to composite on.

Installing it

Ships in Comfyroll Studio (Suzie1 / RockOfFire), a large, established utility pack. Via ComfyUI Manager: search "Comfyroll Studio," install, restart. Or clone it:

cd ComfyUI/custom_nodes
git clone https://github.com/Suzie1/ComfyUI_Comfyroll_CustomNodes.git

then restart. No models, no dependencies - it's pure Python image drawing.

Common issues

Keep the string to actual 1s and 0s - stray spaces or other characters are where a "why does my grid look wrong" moment comes from. If you want a rectangular 2D pattern, make each line the same length; uneven lines give uneven rows.

If you were hoping to set the two colors, the outline, or add some randomness, you're looking at the wrong node - this "Simple" version is monochrome by design. Reach for the full CR Binary Pattern for color mapping and the extra controls. And the usual pack note: if Comfyroll fails to load at startup with a Python traceback about Graphics nodes, that's a broken install rather than this node - reinstall cleanly through Manager and do a full restart.