Qt 3D

Qt 3D provides functionality for near-realtime simulation systems with support for 2D and 3D rendering in both Qt C++ and Qt Quick applications.

The functionality in Qt 3D is divided into the following C++ modules:

Qt3DCore	Qt 3D module contains functionality to support near-realtime simulation systems
Qt3DInput	Qt 3D Input module provides classes for handling user input in applications using Qt3D
Qt3DLogic	Qt 3D Logic module enables synchronizing frames with the Qt 3D backend
Qt3DRender	Qt 3D Render module contains functionality to support 2D and 3D rendering using Qt 3D

The following C++ modules are in still development but are available as technology previews:

Qt3DAnimation	Qt 3D Animation modules provides a set of prebuilt elements to help you get started with Qt 3D
Qt3DExtras	Qt 3D Extras module provides a set of prebuilt elements to help you get started with Qt 3D
Qt3DScene2D	Qt 3D Scene2D module provides a way to render Quick2 qml content to a Qt 3D texture

For Qt Quick applications, Qt 3D provides the following QML modules:

Qt3D.Core	Provides core Qt 3D QML types
Qt3D.Input	Provides QML types for Qt 3D user input
Qt3D.Logic	Provides QML types to synchronize frames with the 3D backend
Qt3D.Render	Provides Qt 3D QML types for rendering

The following QML modules are in still development but are available as technology previews:

Qt3D.Animation	Provides Qt 3D QML types for the animation module
Qt3D.Extras	Provides Qt 3D QML types for the extras module
QtQuick.Scene2D	Provides Qt 3D QML types for the scene2d module
QtQuick.Scene3D	Provides Qt 3D QML types for the Scene3D module

Getting Started

For a C++ application that performs 2D or 3D rendering, collision detection, and also handle user input, add the following line to its qmake .pro file:

QT += 3dcore 3drender 3dinput 3dlogic 3dextras 3danimation

To include the definitions of the modules' classes, use the following directives:

#include <Qt3DCore>
#include <Qt3DRender>
#include <Qt3DInput>
#include <Qt3DLogic>
#include <Qt3DExtras>
#include <Qt3DAnimation>

A Qt Quick application requires also additional dependencies:

QT += 3dcore 3drender 3dinput 3dlogic 3dextras qml quick 3dquick 3danimation

Overview

The high level design and motivation for Qt 3D is described in the Qt 3D Overview. The Qt 3D Render aspect offers support for data-driven configuration as described in Qt 3D Render Framegraph.

Reference

• Qt 3D Overview
• Qt 3D C++ Classes
• Qt 3D QML Types
• Qt 3D Examples

Qt 3D Platform Support

Qt 3D has the following support for platforms:

• Microsoft Windows (win32) - Supported
• Linux X11 - Supported
• macOS - Supported although there may be some retina scaling issues
• Android - Supported
• Embedded Linux - Supported
• iOS - Supported since (Qt 5.7)
• WinRT - Not supported yet

Licenses and Attributions

Qt 3D is available under commercial licenses from The Qt Company. In addition, it is available under the GNU Lesser General Public License, version 3, or the GNU General Public License, version 2. See Qt Licensing for further details.

Furthermore Qt 3D contains third party modules under following permissive licenses:

Open Asset Import Library, version 4.1.0

BSD 3-clause "New" or "Revised" Licensee