Monado is an OpenXR runtime delivering immersive experiences such as VR and AR on mobile, PC/desktop, and any other device. Monado aims to be a complete and conforming implementation of the OpenXR API made by Khronos.

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.

facedetect is a face detector for batch processing. It answers the question: "Is there a face in this image?" and gives back either an exit code or the coordinates of each detect face in the standard output. facedetect is used in software such as fgallery to improve the thumbnail cutting region, so that faces are always centered.

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.

The pstoedit utility allows translating graphics in the PostScript or PDF (Portable Document Format) formats to various other vector formats such as:

• Tgif (.obj)

• gnuplot

• xfig (.fig)

• Flattened PostScript

• DXF, a CAD (Computed-Aided Design) exchange format

• PIC (for troff/groff)

• MetaPost (for usage with TeX/LaTeX)

• LaTeX2e picture

• GNU Metafile (for use with plotutils/libplot)

• Any format supported by ImageMagick

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.

Drawpile is a drawing program that allows share the canvas with other users in real time.

Some feature highlights:

• Shared canvas using the built-in server or a dedicated server

• Record, play back and export drawing sessions

• Simple animation support

• Layers and blending modes

• Text layers

• Supports pressure sensitive Wacom tablets

• Built-in chat

• Supports OpenRaster file format

• Encrypted connections using SSL

• Automatic port forwarding with UPnP

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

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.

OpenVDB is a C++ library comprising a hierarchical data structure and a large suite of tools for the efficient storage and manipulation of sparse volumetric data discretized on three-dimensional grids. It was developed by DreamWorks Animation for use in volumetric applications typically encountered in feature film production.

When a GPU renders triangle meshes, various stages of the GPU pipeline have to process vertex and index data. The efficiency of these stages depends on the data you feed them; this library provides algorithms to help optimize meshes for these stages, as well as algorithms to reduce the mesh complexity and storage overhead.

OGRE (Object-Oriented Graphics Rendering Engine) is a scene-oriented, flexible 3D engine written in C++ designed to make it easier and more intuitive for developers to produce applications utilising hardware-accelerated 3D graphics.

DirectFB is a graphics library which was designed with embedded systems in mind. It offers maximum hardware accelerated performance at a minimum of resource usage and overhead.

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

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.

Imath is a C++ representation of 2D and 3D vectors and matrices and other mathematical objects, functions, and data types common in computer graphics applications, including the "half" 16-bit floating-point type.

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.

FGallery is a static, JavaScript photo gallery generator with minimalist look. The result can be uploaded on any web server without additional requirements.

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

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.

This package provides a header only C++11 glTF (GL Transmission Format) 2.0 library.

GL Transmission Format (glTF) is a royalty-free specification for the efficient transmission and loading of 3D scenes and models by applications. glTF minimizes both the size of 3D assets, and the runtime processing needed to unpack and use those assets. glTF defines an extensible, common publishing format for 3D content tools and services that streamlines authoring workflows and enables interoperable use of content across the industry.

F3D (pronounced /fɛd/) is a VTK-based 3D viewer with simple interaction mechanisms and which is fully controllable using arguments on the command line. It supports a range of file formats (including animated glTF, STL, STEP, PLY, OBJ, FBX), and provides numerous rendering and texturing options.

Flux is an interface description language used by DirectFB. Fluxcomp compiles .flux files to .cpp or .c files.

Boolean operations on paths which uses a super fast polygon clipper library by Angus Johnson.