plantri and fullgen (contained in the same package) are programs for the generation of certain types of planar graphs. Graphs are generated in such a way that exactly one member of each isomorphism class is output without the need for storing them.

This package implements the Louvain algorithm for community detection in C++ and exposes it to Python. Besides the relative flexibility of the implementation, it also scales well, and can be run on graphs of millions of nodes (as long as they can fit in memory). The core function is find_partition which finds the optimal partition using the louvain algorithm for a number of different methods.

QVGE is a multiplatform graph editor written in C++/Qt. Its main goal is to make possible visually edit two-dimensional graphs in a simple and intuitive way.

Faiss is a library for efficient similarity search and clustering of dense vectors. This package provides Python bindings to the Faiss library.

Mscgen is a small program that parses Message Sequence Chart descriptions and produces PNG, SVG, EPS or server side image maps (ismaps) as the output. Message Sequence Charts (MSCs) are a way of representing entities and interactions over some time period and are often used in combination with SDL. MSCs are popular in Telecoms to specify how protocols operate although MSCs need not be complicated to create or use. Mscgen aims to provide a simple text language that is clear to create, edit and understand, which can also be transformed into common image formats for display or printing.

The PyGSP is a Python package to ease signal processing on graphs.

The OpenSceneGraph is a high-performance 3D graphics toolkit used by application developers in fields such as visual simulation, games, virtual reality, scientific visualization and modeling.

The Open Asset Import Library loads more than 40 3D file formats into one unified data structure. Additionally, assimp features various mesh post processing tools: normals and tangent space generation, triangulation, vertex cache locality optimization, removal of degenerate primitives and duplicate vertices, sorting by primitive type, merging of redundant materials and many more.

2geom is a C++ library of mathematics for paths, curves, and other geometric calculations. Designed for vector graphics, it tackles Bézier curves, conic sections, paths, intersections, transformations, and basic geometries.

skcms is the color management engine. It is a part of skia.

Assets bundled with Blender releases in the Essentials assets library.

Skia is a 2D graphics library for drawing text, geometries, and images. It supports:

• 3x3 matrices with perspective

• antialiasing, transparency, filters

• shaders, xfermodes, maskfilters, patheffects

• subpixel text

This package provides a very basic collection of point, size and rect classes for C++.

Anti-Grain Geometry is a high quality rendering engine written in C++. It supports sub-pixel resolutions and anti-aliasing. It is also a library for rendering SVG.

CGAL provides easy access to efficient and reliable geometric algorithms in the form of a C++ library. CGAL is used in various areas needing geometric computation, such as: computer graphics, scientific visualization, computer aided design and modeling, geographic information systems, molecular biology, medical imaging, robotics and motion planning, mesh generation, numerical methods, etc. It provides data structures and algorithms such as triangulations, Voronoi diagrams, polygons, polyhedra, mesh generation, and many more.

Open Shading Language (OSL) is a language for programmable shading in advanced renderers and other applications, ideal for describing materials, lights, displacement, and pattern generation.

Goxel is a voxel editor that features unlimited scene size, unlimited history buffer, 24-bit RGB colors, layers, procedural rendering, ray tracing, and export to various formats including the format used by Magicavoxel.

Discregrid is a C++ library for the parallel discretization of (preferably smooth) functions on regular grids. It generates a (cubic) polynomial discretization given a box-shaped domain, a grid resolution, and a 3D scalar field. The library can also serialize and deserialize the generated discrete grid, and compute and discretize the signed distance field corresponding to a triangle mesh. The following programs are included with Discregrid:

• GenerateSDF: Computes a discrete (cubic) signed distance field from a triangle mesh in OBJ format.

• DiscreteFieldToBitmap: Generates an image in bitmap format of a two-dimensional slice of a previously computed discretization.

• GenerateDensityMap: Generates a density map from a previously generated discrete signed distance field using the cubic spline kernel.

Blender is a 3D graphics creation suite. It supports the entirety of the 3D pipeline—modeling, rigging, animation, simulation, rendering, compositing and motion tracking, even video editing and game creation. The application can be customized via its API for Python scripting.

SuperFamiconv is a converter for tiled graphics, supporting the graphics formats of the SNES, Game Boy Color and PC Engine game consoles. Automated palette selection is supported.

AzPainter is a lightweight full color painting application for editing illustrations and images.

Features include:

• Layers

• Many artistic filters

• Good range of selection tools

• Pen pressure support with automatic brush size adjustment

• Support for 16-bit color images with transparency (RGBA)

• Support for image formats like PSD, PNG, JPEG, TIFF, WebP

Alembic is a computer graphics interchange framework. It distills complex, animated scenes into a set of baked geometric results.

OpenSubdiv is a set of libraries that implement high performance subdivision surface (subdiv) evaluation on massively parallel CPU and GPU architectures.

MMM is a shared memory protocol for virtualising access to framebuffer graphics, audio output and input event.