Qt Lottie Animation
Qt Lottie Animation provides a QML API for rendering graphics and animations that are exported in JSON format by the Bodymovin plugin for Adobe After Effects.
Getting Started
Import the types using the the following statement:
import Qt.labs.lottieqt
See the GitHub page for Bodymovin for instructions on how to download and install the plugin for Adobe After Effects.
Limitations
The implementation follows the master specification for bodymovin. Deviations in exported Bodymovin files compared to the specification are taken into account as much as possible when differences are noticed.
General limitations
precompsare not supported- expressions are not supported
- the timeline only supports frame-mode, not time-mode
Animation level limitations
The following properties are not supported:
assets- reusable text and imagescharstext
Layers
Only the shape layer and the alpha mask adjustment layer are supported.
The following properties are not supported:
ao(auto-orientation)bm(blend mode)maskProperties(masks)sr(time stretch)
Shapes
The following elements and shapes are not supported:
- the
gstroke(group stroke) element - the
starelement - Nested Repeater shapes
Also note that the behavior when using multiple active trim paths (e.g. trim paths in nested groups) is unpredictable.
Effects
The only supported effects are Slide and Layer Fill.
Licenses
Qt Lottie Animation is available under commercial licenses from The Qt Company. In addition, it is available under the GNU General Public License, version 3. See Qt Licensing for further details.