Procgen 9000 🏔️

A ComfyUI custom node toolkit focused on providing several ways to procedurally generate images to be used as seeds for image-to-image (img2img) and ControlNet workflows.

The first node in this set is a procedural 2D landscape image generator using the Midpoint Displacement algorithm, as described in this blog post.

Features

• Landscape Generator Node: Generates procedural landscapes with customizable styles.
  • Algorithm: Faithful port of the iterative vertical midpoint displacement, 4 scaled terrain layers drawn back-to-front.
  • Inputs: seed, width, height, style dropdown, show_sun toggle.
  • Palettes: Twilight, Desert Dusk, Arctic, Forest, Volcanic, Ocean.
  • Custom Mode: Fine-tune the RGB values for the sky, sun, and all 4 layers.
  • Random Mode: Automatically generates random, seed-reproducible color palettes.
  • UI: Includes a horizontal color swatch preview to easily see the current palette without rendering the image.

Quickstart

1. Install ComfyUI.
2. Install ComfyUI-Manager
3. Look up this extension in ComfyUI-Manager. If you are installing manually, clone this repository under ComfyUI/custom_nodes.
4. Restart ComfyUI.

Develop

To install the dev dependencies and pre-commit (will run the ruff hook), do:

cd procgen9000
pip install -e .[dev]
pre-commit install