Qt 3D: Simple QML Example▲
Simple demonstrates how to render a scene in Qt 3D.
Running the Example▲
To run the example from Qt Creator, open the Welcome mode and select the example from Examples. For more information, visit Building and Running an Example.
Setting Up the Scene▲
We set up the entire scene in the main.qml file.
To be able to use the types in the Q3D and Q3D Render modules, we must import the modules:
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import Qt3D.Core 2.0
import Qt3D.Render 2.0The first entities we create are a Camera, which represents the camera used for the final rendering, and a camera controller, which allows us to control this camera using the keyboard or the mouse:
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Camera {
id: camera
projectionType: CameraLens.PerspectiveProjection
fieldOfView: 45
aspectRatio: 16/9
nearPlane : 0.1
farPlane : 1000.0
position: Qt.vector3d( 0.0, 0.0, -40.0 )
upVector: Qt.vector3d( 0.0, 1.0, 0.0 )
viewCenter: Qt.vector3d( 0.0, 0.0, 0.0 )
}
OrbitCameraController {
camera: camera
}A RenderSettings entity specifies a ForwardRenderer as the active framegraph:
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components: [
RenderSettings {
activeFrameGraph: ForwardRenderer {
clearColor: Qt.rgba(0, 0.5, 1, 1)
camera: camera
showDebugOverlay: true
}
},The event source is set by the Qt3DQuickWindow:
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InputSettings { }