Qt / C++ infos

• Poor Man's Volumetric Light

  

  Building Volumetric Light Shafts with Real IES Profiles

  You know that feeling when the street lamps on a hazy evening cast these particular patterns of light? I've always been fascinated by those effects, so I decided to build a real-time volumetric lighting system using Qt 6.11's graphics capabilities,leveraging its QML shader integration and 3D rendering pipeline to recreate them with actual IES profiles.

  
  Streetlight patterns in the evening haze

   

• Call for Presentations – Qt World Summit 2026 in Berlin

  

   

  It's that time of year again; another Qt World Summit is approaching! We are looking for speakers, collaborators, and industry thought leaders to share their expertise and insights at the upcoming Qt World Summit 2026on October 27-28, in Berlin, Germany. 

  *Please note we are looking for live talks only. 

   

• Qt;Athon 2025: Meet the Winners of Our Global Student Coding Competition

  

  In the fall of 2025, Qt Group hosted its second Qt;Athon—an online global coding competition for students. This time Qt;Athon was hosted in collaboration with Extenly. The event brought together 138 student teams from 32 countries, all challenged to push their creativity and technical skills. 

• 2D Rendering - Introducing Qt Canvas Painter

  

  Let’s talk about Qt Canvas Painter — a new imperative 2D rendering API aiming to combine performance, productivity and modern features. This blog post brings you up to date with some 2D rendering history, the current status and future possibilities.
  
  To get us started, here's a short introduction video of 2D rendering with the Qt Canvas Painter.
  
  

• Qt 6.10.2 Released

  Qt 6.10.2 is now available for download. As a patch release, Qt 6.10.2 doesn’t introduce new features, but it delivers around 300 bug fixes, security improvements, and quality enhancements on top of Qt 6.10.1. For a full overview of the most notable changes, take a look at the Qt 6.10.2 release notes.

• Qt Creator 19 Beta released

  We are happy to announce the release of Qt Creator 19 Beta!

  You find a selection of improvements and fixes below. Please have a look at our change log for more detailed information.

• Qt Widgets to Qt Quick, An Application Journey Part 1

  

  - A Tale of Two Software Architectures

  I've been working with Qt on and off for more than 20 years and during that time I've seen Qt Widgets grow and then the advent of Qt Quick. This means having two different graphics stack available at your fingertips in Qt.

• Qt Creator 18.0.2 released

  We are happy to announce the release of Qt Creator 18.0.2!

  This release fixes a range of smaller issues like the persistence of the "Always save files before build" option and an issue that occurred when using some custom toolchains with vcpkg. It also updates the wizard templates for the Qt Safe Renderer.

• Take the Qt Developer Survey 2026

  

  Hi Qt Community!

• Qt 6.5 Reaches End-of-Support in April 2026

  Extended Security Maintenance Is Now Available