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InkSim

InkSim is a standalone embroidery simulator and preview renderer. It opens embroidery files, shows the stitch sequence, and lets you inspect or replay a design before production.

It is a normal Python desktop application installed from PyPI — not an Inkscape extension.

InkSim preview

The viewer includes an OpenGL textured renderer that draws stitches as realistic ribbon quads with normal-mapped thread and Blinn-Phong lighting. Press Z in the viewer to toggle between the CPU and GPU renderers. The GPU renderer requires OpenGL 3.3; older systems fall back to the CPU raster renderer automatically.

Thread texture detail
Detail of the normal-mapped thread texture used by the OpenGL renderer.

Install

uv tool install inksim

Requires Python 3.11+. See the installation guide for uv setup and alternative installers.

Run

inksim
inksim design.pes
inksim design.pes --play

On Windows, inksim-gui design.pes starts without a console window.

InkSim main window

Documentation

Background

The idea behind this tool dates back to 2013 with an experimental C++/Qt project called Orca, which originally explored graph algorithms for Inkscape on Linux before turning into a digitizer and stitch viewer. Here is an old recording of that early prototype in action:

Orca viewer demo

InkSim is a fresh, standalone rewrite of that viewer concept -- built from scratch using Python, PySide6, and Numba. The main goal is to provide a fast, lightweight way to preview embroidery files without heavy overhead.

It was built to fill a small workflow gap, and it's shared with the hope that others in the Inkscape and Ink/Stitch community might find it helpful as well.

Special thanks to the Ink/Stitch team and community for keeping open-source embroidery alive and inspiring.

License

InkSim is released under the GNU General Public License v3 or later.

Metadata

Release files for inksim 0.5.1

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for inksim 0.5.1
File Size Uploaded
inksim-0.5.1.tar.gz 602.6 kB Details

Built distribution (wheel)

Table of built distributions (wheels) for inksim 0.5.1
File Interpreter ABI Platform
inksim-0.5.1-py3-none-any.whl Python 3 none any Details

Total release size: 1.3 MB

Release files / inksim-0.5.1.tar.gz

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Size 602.6 kB
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Release files / inksim-0.5.1-py3-none-any.whl

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0.5.6

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