18.09.2020 
What is Akademy? Akademy is the yearly conference for the KDE community, which is a community devoted to creating free software for desktop and mobile. Typically, Akademy takes place in a different city each year. However, due to the pandemic, the conference was online this time around. September 4-11 marked the dates of Akademy 2020. […]
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3D – Interactions with Qt, KUESA and Qt Design Studio, Part 1 how to create a reflection with minimal computational effort
Neither KUESA or Qt 3D Studio will give free reflections. If you know about 3D, you know it requires ray tracing software, not OpenGL. So, I wondered if there would be an easy way to create this effect.
KDAB at QtDay 2019 April 1st and 2nd, Florence, Italy
On the 1st and 2nd of April, KDAB will once again be sponsors at this fast-growing Qt event in Italy: QtDay 2019. The biggest Qt event in the region, now in its 8th year, contrary to what its name suggests, QtDay 2019 boasts a full two days of technical talks and workshops, each day with […]
Auto Innovation at Embedded World Nuremberg, Feb 26-28, 2019
In vehicle infotainment systems and instrument clusters are getting larger and more complex, requiring an exponentially growing base of software to drive them. Furthermore, KDAB finds that self-driving technology does not obviate the need for displays – in fact, autonomous technology seems to be accelerating the trend for larger and more capable graphics software. To […]
Riding the curve Animation via Bezier curve manipulation.
So, last time we spoke, I left you this teaser… I mean how hard could it be? right? OK So, hum, an easy enough exercise….. for a path-based animation like we saw last time. But how do I draw such a path? How do I time the inflections in speed for that path, since time […]
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 […]
A tale of 2 curves Or the complexity simplicity requires.
As my first subject for this animation blog series, we will be taking a look at Animation curves. Curves, or better, easing curves, is one of the first concepts we are exposed to when dealing with the subject of animation in the QML space. What are they? Well, in simplistic terms, they are a description […]
What makes for good animation?
In the beginning there was … That’s how things start, right? And in the beginning there were punch cards. The UI was rudimentary direct machine language, so we could say there was no UI. So let there be light! In very simplistic terms that was a screen where one could type text (using a keyboard) and […]
Tuple And Pair in C++ APIs? A Simple Design Goal to Improve Your C++ APIs
Quick: When you design C++ APIs, when and how should you use pair and tuple? The answer is as simple as it is surprising: Never. Ever. When we design APIs, we naturally strive for qualities such as readability, ease-of-use, and discoverability. Some C++ types are enablers in this regard: std::optional, std::variant, std::string_view/gsl::string_span, and, of course, […]
Scalable UIs, Scaling the Content
So far we talked about the technical aspects of scaling your application, the dpi, the number of pixels, its nature, the nature of image formats and the implications of all that on the creation of visual elements for your UI. But this is only a part of the problem, for although all this helps you to create answers […]