# ANN : Lithophane 1.0.0

**URL:** https://forum.ada-lang.io/t/ann-lithophane-1-0-0/4783
**Category:** Releases
**Created:** [September 30, 2026, 10:48pm UTC](https://forum.ada-lang.io/t/ann-lithophane-1-0-0/4783 "2026-09-30T22:48:16Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![smionean](https://forum.ada-lang.io/user_avatar/forum.ada-lang.io/smionean/32/88_2.png) [@smionean](https://forum.ada-lang.io/u/smionean)
#### Post date: [September 30, 2026, 10:48pm UTC](https://forum.ada-lang.io/t/ann-lithophane-1-0-0/4783/1 "2026-09-30T22:48:16Z")

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**# [ANN] Lithophane 1.0.0 – turn your pictures into 3D-printable lithophanes**

Hello everyone,

I am thrilled to announce the first release of **lithophane** (1.0.0), a small command-line tool written in Ada 2022, which transforms any picture into a [lithophane](https://en.wikipedia.org/wiki/Lithophane) you can print on your 3D printer.

A lithophane is a delicate slab whose thickness corresponds to the intensity of the image. When illuminated, it reveals an image.

 ![lithophane_stl](https://forum.ada-lang.io/uploads/default/original/2X/1/1b2d0cbb04b4a9424a9c7d98a540709ed4ebb77d.png)

**Features**

- **Many input formats** : PNG, JPEG, BMP, GIF, TGA… thanks to [GID](https://gen-img-dec.sourceforge.io) by @zertovitch
- **Several output formats** : binary STL, ASCII STL and 3MF (watertight mesh, with real physical dimensions in millimetres)
- **Image filters** applied before meshing: `bartlett`, `gauss`, `square`, `sharpen` (configurable kernel size)
- **Adjustable relief** : height, border, grey-level threshold, maximum image size
- **TOML configuration file** to keep your favourite settings

**Getting started**

```ada
alr get lithophane
cd lithophane
alr build
bin/lithophane --filter gauss 5 --save-3mf --dimensions=100x0x2 my_picture.png

```

Run `bin/lithophane --help` for the full list of options, or see the README.

**Links**

- Alire crate: [Alire - Lithophane](https://alire.ada.dev/crates/lithophane)
- Source code: [GitHub - smionean/lithophane\_ada: Lithography with Ada · GitHub](https://github.com/smionean/lithophane_ada)

Feedback, bug reports and pull requests are very welcome.

Thanks to @zertovitch for GID, which does all the heavy lifting on the image decoding side.

Version 1.1.0 in progress…

---

<div class="post-metadata">

### Author: ![NumberSix](https://forum.ada-lang.io/user_avatar/forum.ada-lang.io/numbersix/32/195_2.png) [@NumberSix](https://forum.ada-lang.io/u/NumberSix)
#### Post date: [October 1, 2026, 1:55pm UTC](https://forum.ada-lang.io/t/ann-lithophane-1-0-0/4783/2 "2026-10-01T13:55:16Z")

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Superb! I’m passing it on to friends who use 3D printers:)

Thank you for this beautiful work.

Stef