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amodo - a random walker powered texture generator

(In a hurry? You can try amodo at https://amodo.pages.dev)

amodo sits halfway between a tool for texture artists and a generative art toy: you can load the image of a stone wall as a background reference and then use a custom multi-texture brush walker to create moss-like vegetation on top of it... or you can play around and experiment with the parameters until you find something you simply like.

How to use

amodo only works in desktop computers with a somewhat capable CPU/GPU and mouse/keyboard as input devices.

You can clone this repo and simply open index.html or visit https://amodo.pages.dev, which is always up to date.

Quick help

  • Left click anywhere on the canvas to create a walker.
  • Explore and play with the parameters on the right sidebar.
  • Click and drag with the middle mouse button to pan the canvas.
  • Use your mousewheel to zoom in/out the canvas (only for preview purposes, the real size is set in the parameters).

Features

  • Texture size: 64, 128, 256, 512, 1024, 2048, 4096 or 8192px (square textures).
  • Load background image as reference.
  • Three walker modes (at the time of writing):
    • Random walk.
    • Perlin noise.
    • Gravity.
  • Three-color palette from which the tool will pick randomly for each branch.
  • Two types of brush:
    • Shape: choose between ellipse, square and triangle, solid or stroked.
    • Custom: load your own texture(s). If you load more than one, the brush will become multi-texture and the tool will use a random one per point.
  • Configurable brush parameters:
    • Size.
    • Spacing.
    • Alpha.
    • Random rotation every step.
  • Brush jitter - easily introduce variation per point, stroke or both in:
    • Hue.
    • Saturation.
    • Lightness.
    • Alpha.
    • Size (including non-uniform size jitter).
  • Several blending modes for changing how the walkers blend with the canvas (multiply, add, screen, remove).
  • A very barebones settings manager that allows you to reset to default, reload saved settings, and save current settings (using the Local Storage web API). Settings will automatically reset if a new version is released.
  • Save to file. This will export the texture to a transparent PNG file. You can choose to include the background (either a loaded reference image or the set background color).

Roadmap? Future plans? PRs welcome?

Not really... this was made for fun and I already took it way beyond what the initial plans were (you know how it goes).

If I were to continue working on it, here's some stuff I'd add or improve:

  • Improve performance.
  • More random walker algorithms.
  • Add/remove colors at will.
  • Color presets.
  • Settings presets.
  • Sprite brushes library.
  • Layers?
  • Revamp UI/UX.
  • Better settings management.

Made something cool with amodo?

Please share, I'd love to see it! You can find me on Mastodon.

Credits and license

👋 Hi! I (Jorge) made this. I'm a multidisciplinary graphic designer currently on a sabbatical, learning and trying new stuff out. You can check more of my work at https://www.jorgefuentes.net.

amodo would not exist without the following wonderful software and the hard work from their respective authors - thanks!

amodo is licensed under a GPL-3.0 license. Feel free to fork and modify it, but please share and open source your modifications!