Mobile 3D Graphics API

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Mobile 3D Graphics API
DeveloperJava Community Process
Stable release
1.1 / August 24, 2005; 20 years ago (2005-08-24)
Preview release
2.0 / April 14, 2009; 17 years ago (2009-04-14)[1]
Repository
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Engine
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    Operating systemCross-platform
    Type3D computer graphics software (library/API)
    WebsiteJSR 184: Mobile 3D Graphics API for J2ME
    M3G file format
    Filename extension
    .m3g
    Internet media type
    application/m3g
    Developed byNokia
    Latest release
    1.1
    August 24, 2005; 20 years ago (2005-08-24)
    Type of format3D computer graphics
    StandardJSR 184
    WebsiteJSR 184: Mobile 3D Graphics API for J2ME

    The Mobile 3D Graphics API, commonly referred to as M3G, is an open source graphics API and file format specification for developing Java ME applications that produce 3D computer graphics on embedded devices such as mobile phones and PDAs.

    History

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    Originally developed at Nokia Research Center Tampere in 2003-2005, M3G was standarized under the Java Community Process as JSR 184 in 22 Dec, 2003. As of 2007, the latest version of M3G was 1.1, but version 2.0 was drafted as JSR 297 in April 2009. In 2010, M3G 1.1 JNI source code and related Symbian OS Java Runtime Environment were subsequently released into open source through the Symbian Foundation.

    Rendering

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    File:Asphalt 3 gameplay.png
    Screenshot of the Mobile game Asphalt 3: Street Rules, showing the capabilities of the Mobile 3D Graphics API.

    M3G is an object-oriented interface consists of 30 classes that can be used to draw complex animated three-dimensional scenes, it provides two ways for developers to draw 3D graphics: immediate mode and retained mode.

    In immediate mode, graphics commands are issued directly into the graphics pipeline and the rendering engine executes them immediately. When using this method, the developer must write code that specifically tells the rendering engine what to draw for each animation frame. A camera, and set of lights are also associated with the scene, but is not necessarily part of it. In immediate mode it is possible to display single objects, as well as entire scenes (or worlds, with a camera, lights, and background as parts of the scene).

    Retained mode always uses a scene graph that links all geometric objects in the 3D world in a tree structure, and also specifies the camera, lights, and background. Higher-level information about each object—such as its geometric structure, position, and appearance—is retained from frame to frame. In retained mode, data are not serialized by Java's own serialization mechanism. They are optimized by the M3G serialization mechanism, which produces and loads data streams conforming to the .m3g file format specification for 3D model data, including animation data format. This allows developers to create content on desktop computers that can be loaded by M3G on mobile devices.[2]

    Further reading

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    • Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
    • Aarnio, Callow, Miettinen and Vaarala: Developing Mobile 3D Applications With OpenGL ES and M3G,[3] SIGGRAPH 2005: Courses
    • Alessio Malizia: Mobile 3D Graphics, Springer, 2006, Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
    • Kari Pulli, Tomi Aarnio, Ville Miettinen, Kimmo Roimela, Jani Vaarala: Mobile 3D Graphics with OpenGL ES and M3G, Morgan Kaufmann, 2007, Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
    • Claus Höfele: Mobile 3D Graphics: Learning 3D Graphics with the Java Micro Edition, Thomson Course Technology PTR, 2007, Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
    • Carlos Morales, David Nelson: Mobile 3D Game Development: From Start to Market, Charles River Media, 2007, Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).

    References

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    1. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
    2. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
    3. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
    [edit | edit source]
    Java Community Process
    Specifications
    list of compatible devices
    Source code released by Symbian Foundation on GitHub
    Retrieved from "http://70.231.62.181/index.php?title=Mobile_3D_Graphics_API&oldid=16320679"