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.

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.

OpenCSG is a library for rendering Constructive Solid Geometry (CSG) using OpenGL. CSG is an approach for modeling complex 3D-shapes using simpler ones. For example, two shapes can be combined by uniting them, by intersecting them, or by subtracting one shape from the other.

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

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.

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

Basis Universal is an LDR/HDR GPU compressed texture interchange system supporting transcoding to a large number of GPU texture formats.

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

MiniFB (Mini FrameBuffer) is a small, cross-platform library that makes it easy to render (32-bit) pixels in a window.

Embree is a collection of high-performance ray tracing kernels. Embree is meant to increase performance of photo-realistic rendering applications.

Mmg is a collection of applications and libraries for bidimensional and tridimensional surface and volume remeshing. It consists of:

• the mmg2d application and library: mesh generation from a set of edges, adaptation and optimization of a bidimensional triangulation and isovalue discretization;

• the mmgs application and library: adaptation and optimization of a surface triangulation and isovalue discretization;

• the mmg3d application and library: adaptation and optimization of a tetrahedral mesh, isovalue discretization and Lagrangian movement;

• the mmg library gathering the mmg2d, mmgs and mmg3d libraries.

GNU Paint is a simple, easy-to-use paint program for the GNOME environment. It supports drawing freehand as well as basic shapes and text. It features cut-and-paste for irregular regions or polygons.

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.

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.

This is a headers-only library that allows approximate convex decomposition of a 3D surface.

NanoSVG is a simple single-header SVG parser. The output of the parser is a list of cubic bezier shapes. The library suits well for anything from rendering scalable icons in an editor application to prototyping a game.

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.

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

AutoTrace is a utility for converting bitmap into vector graphics. It can trace outlines and midlines, effect color reduction or despeckling and has support for many input and output formats. It can be used with the autotrace utility or as a C library, libautotrace.

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.

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.

Xdot is an interactive viewer for graphs written in graphviz’s dot language. Internally, it uses the xdot output format as an intermediate format, and gtk and cairo for rendering. Xdot can be used either as a standalone application, or as a Python library.

This package contains tools for building documentation with Sphinx, Graphviz and LaTeX.

The purpose of dot2tex is to give graphs generated by Graphviz a more LaTeX friendly look and feel. This is accomplished by converting xdot output from Graphviz to a series of PSTricks or PGF/TikZ commands. This approach allows:

• Typesetting labels with LaTeX, allowing mathematical notation

• Using native PSTricks and PGF/TikZ commands for drawing arrows

• Using backend specific styles to customize the output