See also
- Aqsis
- Pixie (renderer)
| Developer(s) | Emmanuel Turquin, Stéphane Grabli |
|---|---|
| Stable release | 2.2.0 / March 5, 2008 |
| Written in | C++ |
| Operating system | Linux, Mac OS X, Microsoft Windows |
| Type | Renderer |
| License | GNU General Public License |
| Website | http://freestyle.sourceforge.net/ |
Freestyle is a free, open source renderer for non-photorealistic line drawing from 3D scenes.
The program uses a shader script model inspired by the RenderMan Shading Language, allowing different shading styles to be written as a script that's interpreted at the render time. The different rendering styles are based on "style modules" that are written in Python programming language. [1]
The stand-alone program, which uses OpenGL and the Qt widget toolkit, can render images based on .3ds files. The stand-alone version of Freestyle is not under active development anymore, since 2008.
Freestyle is integrated with Blender as of version 2.67. [2] The Freestyle version integrated with Blender is under active development. [3]
Rendering or image synthesis is the process of generating a photorealistic or non-photorealistic image from a 2D or 3D model by means of a computer program. The resulting image is referred to as a rendering. Multiple models can be defined in a scene file containing objects in a strictly defined language or data structure. The scene file contains geometry, viewpoint, textures, lighting, and shading information describing the virtual scene. The data contained in the scene file is then passed to a rendering program to be processed and output to a digital image or raster graphics image file. The term "rendering" is analogous to the concept of an artist's impression of a scene. The term "rendering" is also used to describe the process of calculating effects in a video editing program to produce the final video output.
The RenderMan Interface Specification, or RISpec in short, is an open API developed by Pixar Animation Studios to describe three-dimensional scenes and turn them into digital photorealistic images. It includes the RenderMan Shading Language.
Blender is a free and open-source 3D computer graphics software tool set that runs on Windows, MacOS, BSD, Haiku, and Linux. It is used for creating animated films, visual effects, art, 3D-printed models, motion graphics, interactive 3D applications, virtual reality, and, formerly, video games. Blender's features include 3D modelling, UV mapping, texturing, digital drawing, raster graphics editing, rigging and skinning, fluid and smoke simulation, particle simulation, soft body simulation, sculpting, animation, match moving, rendering, motion graphics, video editing, Python scripting, and compositing.
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Cairo is an open-source graphics library that provides a vector graphics-based, device-independent API for software developers. It provides primitives for two-dimensional drawing across a number of different backends. Cairo uses hardware acceleration when available.
In computer graphics, a shader is a computer program that calculates the appropriate levels of light, darkness, and color during the rendering of a 3D scene—a process known as shading. Shaders have evolved to perform a variety of specialized functions in computer graphics special effects and video post-processing, as well as general-purpose computing on graphics processing units.
A shading language is a graphics programming language adapted to programming shader effects. Shading languages usually consist of special data types like "vector", "matrix", "color" and "normal".
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OpenGL Shading Language (GLSL) is a high-level shading language with a syntax based on the C programming language. It was created by the OpenGL ARB to give developers more direct control of the graphics pipeline without having to use ARB assembly language or hardware-specific languages.
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WebGL is a JavaScript API for rendering interactive 2D and 3D graphics within any compatible web browser without the use of plug-ins. WebGL is fully integrated with other web standards, allowing GPU-accelerated usage of physics, image processing, and effects in the HTML canvas. WebGL elements can be mixed with other HTML elements and composited with other parts of the page or page background.
Away3D is an open-source platform for developing interactive 3D graphics for video games and applications, in Adobe Flash or HTML5. The platform consists of a 3D world editor, a 3D graphics engine, a 3D physics engine and a compressed 3D model file format (AWD).
Art of Illusion is a free software, and open source software package for making 3D graphics.
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