Qt 5.4 was released just last week! The new release comes right on schedule (following the 6-months development cycle of the Qt 5 series), and brings a huge number of new features. KDAB engineers have contributed lots of code to Qt during the last few months. Once more, KDAB is the second largest contributor to […]
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Overview of Qt3D 2.0 – Part 1
Introduction Back in the days when Qt was owned by Nokia, a development team in Brisbane had the idea of making it easy to incorporate 3D content into Qt applications. This happened around the time of the introduction of the QML language and technology stack, and so it was only natural that Qt3D should also […]
Context-sensitive CMake documentation in QtCreator
CMake 3.0 was released last week with many major new features and new Qt integration for uic and rcc. A major change with this CMake release is the new documentation system based on reStructuredText and Sphinx. Sphinx has the ability to generate Qt Assistant files, so these are now easy to create reproducibly from the […]
Defensive Patent Publication for Qt
In the last few weeks I’ve been working on a prose description of how the type-erased container iteration with QVariant works. The existence of the feature and how it can be used was described in my presentation at DevDays 2013. The slides are available here. The video is not available currently, but will be published […]
KDAB contributions to Qt 5.2
Qt 5.2 has just been released! Coming only five months after 5.1, the new release brings in a huge number of new features, as well as many bug fixes. For the first time ever, Qt is officially supported on two major mobile platforms: Android and iOS. KDAB contributed over 300 commits to Qt 5.2, both […]
KDAB contributions to Qt 5.1
The release of Qt 5.0 brought to an end the first opportunity in 7 years to break source and binary compatibility for a Qt release. It was a huge effort from across all disciplines and contributions, from design discussions, documentation and development to infrastructure, administration, marketing, testing and packaging. KDAB made significant contributions to the […]
OpenGL in Qt 5.1 – Part 5
This article concludes our series on what is new in Qt 5.1 with respect to OpenGL. Earlier articles in this series are available at: Part 1 Part 2 Part 3 Part 4 More shader stages In Qt 5.0 the QOpenGLShader and QOpenGLShaderProgram classes only had support for Vertex and Fragment shaders. Qt 5.1 will include […]
OpenGL in Qt 5.1 – Part 4
This article continues our series on what is new in Qt 5.1 with respect to OpenGL. Earlier articles in this series are available at: Part 1 Part 2 Part 3 OpenGL Debug Output The traditional way to debug OpenGL is to call glGetError() after every GL function call. This is tedious, clutters up our code, […]
OpenGL in Qt 5.1 – Part 3
This article continues our series on what is new in Qt 5.1 with respect to OpenGL. If you haven’t already seen them, you may be interested in reading Part 1 and Part 2. Timer Queries OpenGL on the desktop exposes a very useful tool in the shape of timer query objects. These can be used […]
OpenGL in Qt 5.1 – Part 2
Qt has QOpenGLBuffer to manage OpenGL buffer objects like per-vertex attribute data and element index buffers. OpenGL also has a container type call Vertex Array Objects managing vertex buffer objects.