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OpenCSG is a library that does image-based CSG rendering using OpenGL. OpenCSG is written in C++ and supports most modern graphics hardware. CSG is short for Constructive Solid Geometry and denotes an approach to model complex 3D-shapes using simpler ones. I.e., two shapes can be combined by taking the union of them, by intersecting them, or by subtracting one shape of the other. The most basic shapes, which are not result of such a CSG operation, are called primitives. Primitives must be solid, i.e., they must have a clearly defined interior and exterior. By construction, a CSG shape is also solid then. Image-based CSG rendering (also z-buffer CSG rendering) is a term that denotes algorithms for rendering CSG shapes without an explicit calculation of the geometric boundary of a CSG shape. Such algorithms use frame-buffer settings of the graphics hardware, e.g., the depth and stencil buffer, to compose CSG shapes. OpenCSG implements a variety of those algorithms, namely the Goldfeather algorithm and the SCS algorithm, both of them in several variants.

This port installs section 3 manpages for the OpenGL 3d graphics API so that they are directly accessable from the man(1) command. Especially useful for the graphics/Mesa port/package. Included OpenGL related libraries: gl, glx, glu, gle, glut. gl, glx and glu are taken from ftp.sgi.com. They carried no version information. Stored in the same directory at the time I grabbed them was the OpenGL spec 1.2.1, which may or may not indicate the state of the manpages. :-/ The gl, glx and glu manpages are unusable when just unpacking them. I repackaged them so that - the file name actually is the name of the function, including gl... etc prefixes and respecting case. - all filenames end in *.3 - hard links are created so that the man command works for all functions in a manpage, not just the first one. gle and glut are taken from the glut-3.7 distribution (where the Webpage says it is beta, but the distfile name does not). These are unchanged, but there are currently no hardlinks to secondary functions names.

Image::Size is a library based on the image-sizing code in the wwwimagesize script, a tool that analyzes HTML files and adds HEIGHT and WIDTH tags to IMG directives. Image::Size has generalized that code to return a raw (X, Y) pair, and included wrappers to pre-format that output into either HTML or a set of attribute pairs suitable for the CGI.pm library by Lincoln Stein. Currently, Image::Size can size images in XPM, XBM, GIF, JPEG and PNG formats. I did this because my WWW server generates a lot of documents on demand rather than keeping them in static files. These documents not only use directional icons and buttons, but other graphics to annotate and highlight sections of the text. Without size attributes, browsers cannot render the text of a page until the image data is loaded and the size known for layout. This library enables scripts to size their images at run-time and include that as part of the generated HTML. Or for any other utility that uses and manipulates graphics. The idea of the basic interface + wrappers is to not limit the programmer to a certain data format.

Context Free Design Grammar compiler. About CFDG: Chris Coyne created a small language for design grammars called CFDG. These grammars are sets of non-deterministic rules to produce images. The images are surprisingly beautiful, often from very simple grammars. Context Free is a full graphical environment for editing, rendering, and exploring CFDG design grammars. Features: * Simultaneously available for Macintosh, Windows and Posix/Unix. * Progressive image update: watch it generate * Save generated images in PNG or SVG format. * Produce animations * Edit grammars and re-render easily. * Render very large images (as large as 100 Mega-pixels). * Can handle generated images with millions of shapes. * Carefully tuned graphics rendering * Many built-in examples * Automatic checking for updates (Mac only). * It's free, as in beer and as in speech.

Geomview and OOGL are part of an ongoing effort at the Geometry Center to provide interactive 3D graphics software which is particularly appropriate for displaying the kinds of objects and doing the kinds of operations of interest in mathematics research and education. You can compute an OOGL data file of a mathematical object that would be difficult or impossible to build a model of in the real world. In geomview, besides examining an object in ordinary Euclidean 3-space, you can look at objects in hyperbolic 3-space and Euclidean 4-space. The hyperbolic model is the projective one, where geodesics are straight lines and isometries are represented as 4x4 projective matrices. While geomview is tailored for mathematical visualization, it is written to be extensible and can serve as a general-purpose tool. Its functionality can be extended in an almost unlimited fashion by external modules.

libAfterImage is the imaging library implemented for AfterStep X Window Manager. It has been generalized to be suitable for any application in need of robust graphics engine. It provides facilities for loading images from files of different formats, compressed in memory storage of images, scaling, tinting/shading, flipping and superimposition of arbitrary number of images over each other. In addition it allows for linear gradients drawing, and antialiased/smoothed text drawing using both FreeType library and X Window fonts. Primary goals of this library are to achieve exceptional quality of images and text, making code fast and small at the same time. Additional steps are taken to compensate for screen colordepth limitation, and different error diffusion algorithms are used to provide for smooth images even in low colordepth modes.

MozJPEG is a fork of libjpeg-turbo with 'jpgcrush' functionality built in. This project's goal is to reduce the size of JPEG files without reducing quality or compatibility with the vast majority of the world's deployed decoders. The idea is to reduce transfer times for JPEGs on the Web, thus reducing page load times. 'mozjpeg' is not intended to be a general JPEG library replacement. It makes tradeoffs that are intended to benefit Web use cases and focuses solely on improving encoding. It is best used as part of a Web encoding workflow. For a general JPEG library (e.g. your system libjpeg), especially if you care about decoding, we recommend graphics/libjpeg-turbo port.

MuPDF is a lightweight PDF viewer and toolkit written in portable C. The renderer in MuPDF is tailored for high quality anti-aliased graphics. It renders text with metrics and spacing accurate to within fractions of a pixel for the highest fidelity in reproducing the look of a printed page on screen. MuPDF has a small footprint. A binary that includes the standard Roman fonts is only one megabyte. A build with full CJK support (including an Asian font) is approximately five megabytes. MuPDF has support for all non-interactive PDF 1.7 features, and the toolkit provides a simple API for accessing the internal structures of the PDF document. Example code for navigating interactive links and bookmarks, encrypting PDF files, extracting fonts, images, and searchable text, and rendering pages to image files is provided.

This module makes it easy to visualise data structures, even recursive or circular ones. It is provided as an alternative to GraphViz::Data::Grapher. Differences: - GraphViz::Data::Structure handles structures of arbitrary depth and complexity, automatically following links using a standard graph traversal algorithm. - GraphViz::Data::Grapher creates graphics of indiividual substructures (arrays, scalars, hashes) which keep the substructure type and data together; GraphViz::Data::Structure does this by shape alone. - GraphViz::Data::Structure encapsulates object info (if any) directly into the node being used to represent the class. - GraphViz::Data::Grapher colors its graphs; GraphViz::Data::Structure doesn't by default. - GraphViz::Data:Structure can parse out globs and CODE references (almost as well as the debugger does).

Gnash is a GNU Flash movie player. Previously, it was only possible to play flash movies with proprietary software. While there are some other free flash players, none support anything beyond SWF v4. Gnash is based on GameSWF, and supports many SWF v7 features. - Runs standalone Gnash can run standalone to play flash movies. - Browser plugin Gnash can also run as a plugin from within most Mozilla derived browsers, such as Firefox. Gnash also has support for Konqueror. - SWF v7+ compliant Gnash can play many current flash movies. - Streaming Video Gnash supports the viewing of streaming video from popular video sharing sites like Lulu.tv or YouTube.com. - XML Message server Gnash also supports an XML based message system as documented in the Flash Format specification. - High Quality Output Gnash uses OpenGL for rendering the graphics on the desktop, and AntiGrain (AGG) for embedded framebuffer only devices. - Free Software Gnash is 100% free software. For more information on the GPL, go to the Free Software Foundation web site. - Better Security Gnash pays extra attention to all network connections, and allows the user to control access. - Extensible Gnash supports extending ActionScript by creating your own. You can write wrappers for any development library, and import them into the player.