|Stable release||7.2 / March 2014|
|Operating system||Mac OS X, Linux, Microsoft Windows|
|Type||3D computer graphics|
AC3D is a 3D design program which has been available since 1994. The software is used by designers for modeling 3D graphics for games and simulations - most notably it is used by the scenery creators at Laminar Research on the X-Plane (simulator). The .ac format has also been used in FlightGear for scenery objects and aircraft models
A Linux port was released onto the internet in 1994 (the GL graphics were replaced with OpenGL). A Microsoft Windows port followed when the X-Window interface was dropped in favor of the portable Tcl/Tk scripting library.
In 2002, Inivis Limited purchased the full intellectual property rights to AC3D and continues to develop and market the software. They decided to keep the name AC3D for the software.
In 2005, a Mac OS X version of AC3D was released.
AC3D's modeling is polygon/subdivision-surface based. Unlike some other 3D software, AC3D refers to 'surfaces' rather than 'polygons'. An AC3D surface can be a polygon, polygon-outline or line. An AC3D object is a collection of surfaces.
AC3D can load and save a wide variety of 3D file formats but primarily uses its own .ac file format which is ascii.
Scripting and plugins
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