Introduction #

NijiGPen is an open-source Blender add-on that brings new features to Grease Pencil for creating 2D graphic design and illustrations. It provides with the following functions:

• 2D algorithms for vector shapes and strokes
• Refinement and cleanup of hand-drawn 2D strokes
• Conversion from 2D shapes to 3D meshes
• Data exchange with other painting/designing tools

The name of this add-on is the combination of the words "nijigen" (meaning "two-dimensional" in Japanese) and "gpencil".

GitHub YouTube Gumroad

Current version: 0.10.2

* This add-on deploys several optimization techniques to achieve its functions. However, it does NOT contain any AI algorithms that require training on other artists' work.

Demo of Features #

Credits #

The functions of this add-on are implemented with the following packages:

• Pyclipper wrapper by Maxime Chalton and the Clipper library by Angus Johnson
• Triangle by Dzhelil Rufat and Jonathan Richard Shewchuk
• SciPy
• Scikit-image

The new algorithms in the add-on are inspired by several research papers. Please refer to the algorithm page for a reference list.

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