Chasing the raspberry pi dragon: OpenGL ES2 accelerated Qt PI

Published Monday October 3rd, 2011 | 18 Comments on Chasing the raspberry pi dragon: OpenGL ES2 accelerated Qt PI
Posted in C++, Embedded, Kinetic, Lighthouse, OpenGL, Performance, Qt Quick

The raspberry pi initiative is very compelling and (forgive me for the hype) just got even more compelling now that we have Qt 5 running with full acceleration on the target. A tagline of “An ARM Linux box for $25. Take a byte!” sums it up rather nicely and should get many a geeks pulse racing. […]

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Qt Quick 3D Tutorial-Video

Published Wednesday August 24th, 2011 | 13 Comments on Qt Quick 3D Tutorial-Video
Posted in OpenGL, Qt Quick, Qt Quick 3D

Hi, I thought it’s time for a new Quick3D-HowTo-Video. It’s been some time since the last one was posted. This time the video is more technical and less religious 😉 I’ve nothing against Monkeyism, but let’s be honest, devoted penguins are one thing, though the real stuff is cars, cars, cars!   I stumbled across […]

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Text Rendering in the QML Scene Graph

Published Friday July 15th, 2011 | 26 Comments on Text Rendering in the QML Scene Graph
Posted in Graphics, OpenGL, Painting, Performance

Some time ago, Gunnar presented to you what the new QML Scene Graph is all about. As mentioned in that article, one of the new features is a new technique for text rendering based on distance field alpha testing. This technique allows us to leverage all the power of OpenGL and have text like we […]

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QML Scene Graph in Master

Published Tuesday May 31st, 2011 | 80 Comments on QML Scene Graph in Master
Posted in OpenGL, Painting, Performance, Qt, Qt Quick

Earlier this week, we integrated the QML Scene Graph into qtdeclarative-staging.git#master. Grab the modularized Qt 5 repositories and start hacking! The primary way to make use of it is by running qmlscene or by instantiating a QSGView and feeding it your own .qml file. The import name has been upgraded to QtQuick 2.0, so upgrade […]

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QML ShaderEffectItem on QGraphicsView

Published Tuesday May 3rd, 2011 | 10 Comments on QML ShaderEffectItem on QGraphicsView
Posted in Graphics View, Labs, OpenGL, Qt Quick

For those who don’t yet know what ShaderEffectItem is, please see: QML2 on top of the QML Scene Graph provides an awesome API for combining GL/GLES shader code with QML. The API consists of two new QML elements: ShaderEffectItem and ShaderEffectSource. With this API, it’s easy to create effects and animations that could not […]

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The convenient power of QML Scene Graph

Published Tuesday March 22nd, 2011 | 37 Comments on The convenient power of QML Scene Graph
Posted in OpenGL, Painting, Performance

QML on QGraphicsView is limited to only features that are fast enough and absolutely necessary to make nice UIs. Potentially slow features like composition modes, QPainterPaths, QGraphicsEffects and complex brushes are not supported. We have been trying to make it easy for you to create fast and responsive UIs, and hard to create sluggish ones. […]

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