NVIDIA open-sourced and contributed to Qt the NVIDIA DRIVE Design Studio, which is a "designer friendly 3D UI authoring system" and Qt is now releasing it with the name Qt 3D Studio.
Lars Knoll wrote this morning in announcing it, "The contribution consists of several hundred thousand lines of source code. It consists of a runtime component, designer friendly tooling and a Qt integration. This will allow us to bring state-of-the-art 3D tooling to the whole Qt ecosystem. As the title of this blog post suggests, we do even have a name for it already: Qt 3D Studio."
Qt 3D Studio is complementary to the existing Qt UI technologies. Qt 3D Studio is available as open-source as well as commercial licensing terms.
Learn more about Qt 3D Studio via the Qt blog.