By rweather

Qt Graphics and Performance – OpenVG

Published Monday December 21st, 2009 | 2 Comments on Qt Graphics and Performance – OpenVG
Posted in Graphics, Painting, Performance

In previous posts in this series, Gunnar has described the design and performance characteristics of the painting system in Qt, and explored Raster in greater depth.  In this post, I’m going to talk about the unique features of the OpenVG graphics system. Paint Engine Unlike the other engines, the OpenVG paint engine was much easier […]

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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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OpenVG support in Qt 4.6

Published Wednesday June 24th, 2009 | 9 Comments on OpenVG support in Qt 4.6
Posted in Painting, Qt

Recently we’ve been working on writing an OpenVG graphics system for Qt 4.6, and now it is all ready to go! Qt 4.5 added support for pluggable graphics systems, which allow the window drawing surfaces and their associated paint engines to be redirected to a plugin for handling.  There are graphics systems for OpenGL 1.x […]

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