如何正确处理 QML 中的 Scene3D?
How to properly dispose Scene3D from QML?
对于我的项目,我需要将 QtQuick.Scene3D 放在 QtQuick.Component
场景已成功创建,但是当我尝试处理组件时,我在
处遇到了段错误
0 Qt3D::QCamera::position() const 0xb7226e6b
1 Qt3D::QCamera::translate(QVector3D const&, Qt3D::QCamera::CameraTranslationOption) 0xb7226fa4
对象的删除顺序似乎有误。所以,有一个问题:我应该在 C++ 中实现整个对象图,还是有正确的方法来使 Scene3D 可重新创建?
有我的组件qml文件:
import Qt3D 2.0
import Qt3D.Renderer 2.0
import QtQuick.Scene3D 2.0
import QtQuick 2.0 as QQ2
import CeGui 1.0;
import VectorPlot 1.0;
QQ2.Component {
QQ2.Item {
Scene3D {
anchors.fill: parent
id: rootscene
aspects: "input"
Entity {
id: sceneRoot
Camera {
id: camera
projectionType: CameraLens.PerspectiveProjection
fieldOfView: 45
aspectRatio: 16/9
nearPlane : 0.1
farPlane : 1000.0
position: Qt.vector3d( 25.0, -25.0, 25.0 )
upVector: Qt.vector3d( 0.0, 0.0, 1.0 )
viewCenter: Qt.vector3d( 0.0, 0.0, 0.0 )
}
Configuration {
id: cfg
controlledCamera: camera
}
Viewport {
id: viewport
rect: Qt.rect(0.0, 0.0, 1.0, 1.0) // From Top Left
clearColor: Qt.rgba(0, 0.5, 1, 1)
CameraSelector {
id : cameraSelector
camera: camera
ClearBuffer {
buffers : ClearBuffer.ColorDepthBuffer
}
}
}
components: [
FrameGraph {
id: framgraph
activeFrameGraph: viewport
}
]
BarChartScene {
id: bcs
model: GlobalViewModel.harmonicsEditModel
}
}
}
}
}
我在 Linux
中将 Qt 5.5 用于 32 位 gcc
在即将发布的版本中似乎是 known bug, which will be fixed
对于我的项目,我需要将 QtQuick.Scene3D 放在 QtQuick.Component 场景已成功创建,但是当我尝试处理组件时,我在
处遇到了段错误0 Qt3D::QCamera::position() const 0xb7226e6b
1 Qt3D::QCamera::translate(QVector3D const&, Qt3D::QCamera::CameraTranslationOption) 0xb7226fa4
对象的删除顺序似乎有误。所以,有一个问题:我应该在 C++ 中实现整个对象图,还是有正确的方法来使 Scene3D 可重新创建?
有我的组件qml文件:
import Qt3D 2.0
import Qt3D.Renderer 2.0
import QtQuick.Scene3D 2.0
import QtQuick 2.0 as QQ2
import CeGui 1.0;
import VectorPlot 1.0;
QQ2.Component {
QQ2.Item {
Scene3D {
anchors.fill: parent
id: rootscene
aspects: "input"
Entity {
id: sceneRoot
Camera {
id: camera
projectionType: CameraLens.PerspectiveProjection
fieldOfView: 45
aspectRatio: 16/9
nearPlane : 0.1
farPlane : 1000.0
position: Qt.vector3d( 25.0, -25.0, 25.0 )
upVector: Qt.vector3d( 0.0, 0.0, 1.0 )
viewCenter: Qt.vector3d( 0.0, 0.0, 0.0 )
}
Configuration {
id: cfg
controlledCamera: camera
}
Viewport {
id: viewport
rect: Qt.rect(0.0, 0.0, 1.0, 1.0) // From Top Left
clearColor: Qt.rgba(0, 0.5, 1, 1)
CameraSelector {
id : cameraSelector
camera: camera
ClearBuffer {
buffers : ClearBuffer.ColorDepthBuffer
}
}
}
components: [
FrameGraph {
id: framgraph
activeFrameGraph: viewport
}
]
BarChartScene {
id: bcs
model: GlobalViewModel.harmonicsEditModel
}
}
}
}
}
我在 Linux
中将 Qt 5.5 用于 32 位 gcc在即将发布的版本中似乎是 known bug, which will be fixed