modifying an arbitrary subset of a compressed texture, without having to re-download the whole texture to the GPU for significant performance improvements. capturing GPU-tessellated geometry and drawing multiple instances of the result of a transform feedback to enable complex objects to be efficiently repositioned and replicated. These capabilities can be combined, for example, to maintain a counter at each pixel in a buffer object for single-rendering-pass order-independent transparency 
enabling shaders with atomic counters and load/store/atomic read-modify-write operations to a single level of a texture.New functionality in the OpenGL 4.2 specification includes: Le specifiche complete sono disponibili a questa pagina.
Khronos Group ha annunciato il rilascio delle specifiche OpenGL 4.2.
32- or 64-bit Microsoft Windows XP Service Pack 2, Windows Vista, or Windows 7. The Qt SDK is available in the following versions and installation packages: Over 20 new Qt Mobility examples, which are now easily assessable from the Qt Creator welcome page. Added CODA 1.0.6 (on-device debugging) agent. Updated Nokia AnalyzeTool plug-in to take full advantage of Qt Creator 2.4. Qt Creator 2.4.1: offering improvements in the C++ and QML editors, such as syntax highlighting in QML, and improved static QML code checking features. An update to Notifications API improving the end user experience and fixing issues in the Nokia N9 implementation of the API. Update to the Symbian Complementary Package introducing Analyze Tool plugin and new CODA 1.0.6 installation package. Ability to specify network proxy setting in the SDK Maintenance Tool. More Qt Mobility examples for Nokia N9 and Symbian devices. Qt 4.8 for desktops delivering Qt Quick 1.1, Qt platform abstraction, Qt WebKit 2.2, and threaded OpenGL. 
Fixes for Qt Creator 2.4 in a new 2.4.1 patch update.
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