25.10.2019 
As mentioned in the previous article in this series, Qt 3D 5.14 is bringing a number of changes aimed at improving performance. Most people familiar with Qt 3D will know that the API is designed around the construction of a scene graph, creating a hierarchy of Entities, each of them having having any number of […]
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KDAB at Embedded Technology, Japan 14-16 November 2018
KDAB is proud to announce that for the first time ever we will be present at Embedded Technology outside of Tokyo in Japan. Every year more than 25000 visitors attend over 3 days! The event takes place in the Pacifico Yokohama exhibition center and focuses on Embedded AI, IoT Wireless Technology, Smart Sensing and Safety […]
Efficient custom shapes in Qt Quick Because rectangles, even rounded ones, can only get you so far.
QtQuick includes basic visual item to construct many common user-interface components, but people often ask how to create different visual appearances, beyond rectangles, round-rectangles and images. There’s various solutions to this problem, and with Qt 5.10, there’s the new Shapes module which makes it easy to define paths, ellipses and other standard SVG drawing elements. […]
Python – Tron Demo Using Qt Quick and the Qt 3D QML API
For SIGGRAPH, KDAB has been working on a new Qt 3D based demo. We decided that instead of using C++, it would be interesting to try out PySide2 and harness Python to drive the application. The idea behind this demo is to do with data acquisition of a vehicle’s surrounding environment. Once the data is […]
KDAB at SIGGRAPH 2018 12-18 August, Vancouver
Yes, folks. This year SIGGRAPH 2018 is in Canada and we’ll be there at the Qt booth, showing off our latest tooling and demos. These days, you’d be surprised where Qt is used under the hood, even by the biggest players in the 3D world! SIGGRAPH 2018 is a five-day immersion into the latest innovations […]
New in Qt 5.10: Texture Based Animations in Qt 3D Or how to blow things up
Many new features were added to Qt 3D in the 5.10 release. One of them is the support for sprite sheets, contributed by KDAB, as provided by QSpriteGrid and QSpriteSheet and their respective QML items. One way of animating things is to switch between many different versions of the same object at different points in time, like […]
KDAB’s City Lights Display with Qt 3D Qt 3D put to novel use to implement a deferred rendering pipeline
The City Lights demo is an example of Qt 3D being put to novel use to implement a deferred rendering pipeline. With OpenGL, the number of lights you can show on a screen, also affecting objects in a scene, is limited by the need to use a forward renderer. Using Qt 3D, the geometry considerations […]
Writing a Custom Qt 3D Aspect – part 2 Setting up the backend and communications
Introduction In the previous article we gave an overview of the process for creating a custom aspect and showed how to create (most of) the front end functionality. In this article we shall continue building our custom aspect by implementing the corresponding backend types, registering the types and setting up communication from the frontend to […]
Writing a Custom Qt 3D Aspect – part 1 Extending Qt 3D via Aspects
Introduction Qt 3D has a flexible and extensible architecture that allows us to easily add our own new functionality to it without disrupting the existing features. The functionality of Qt 3D is divided among so-called aspects, each of which encapsulates a particular subject domain such as rendering, input, or animation. This short series of articles […]
Lots of lights: Generating cities Data visualization with Qt 3D, OpenGL and C++
Sometimes data visualization might call for more than a graph – you need to visualize complex data, such as that generated by city lighting, in three dimensions to get the full effect. KDAB decided to put together a showcase for the Qt World Summit that allowed us to demonstrate Qt 3D’s capabilities as a performant […]