Qt Graphics and Performance – An Overview

Published Wednesday December 16th, 2009 | 21 Comments on Qt Graphics and Performance – An Overview
Posted in Graphics Dojo, OpenGL, Painting, Performance

For this blog series that I’m doing, I figure its nice to start with an overview of the whole painter, pixmaps, widgets, graphicsview, backingstore idea. At the centre of all Qt graphics is the QPainter class. It can render to surfaces, through the QPaintDevice class. Examples of paint devices are QImage’s, QPixmaps and QWidgets. The […]

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Building Qt to make use of the Beagle board’s SGX GPU

Published Friday November 20th, 2009 | 32 Comments on Building Qt to make use of the Beagle board’s SGX GPU
Posted in Build system, Embedded, Graphics View, OpenGL, Painting, Performance, Qt

Introduction Texas Instruments has a wiki which documents what is required to bring Qt up on the Beagle board with full OpenGL ES (1/2) support: and I would like to thank one of their engineers, Varun, for his quick turn around times in addressing any questions I raised. This blog entry is intended to […]

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Qt/3D features in Qt 4.6

Published Tuesday November 10th, 2009 | 32 Comments on Qt/3D features in Qt 4.6
Posted in OpenGL, Painting

For the last year, we have been investigating API’s that Qt needs to support 3D applications and clever 2.5D effects with OpenGL.  When we started all this a year ago, the problem was broken down into three main areas: Enablers – Basic building blocks like matrices, shaders, vertex buffers, etc. Portability API – API’s that […]

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