Qt框架中, 一个自定义QWidget中显示Qt3DWindow, 代码怎么写
时间: 2024-03-08 16:47:07 浏览: 323
要在自定义QWidget中显示Qt3DWindow,需要进行以下步骤:
1. 首先,在自定义QWidget的头文件中,包含Qt3DWindow的头文件:
```cpp
#include <Qt3DExtras/Qt3DWindow>
```
2. 在自定义QWidget的构造函数中,创建Qt3DWindow,并将其作为子控件添加到当前QWidget中:
```cpp
MyWidget::MyWidget(QWidget *parent) : QWidget(parent)
{
// 创建Qt3DWindow
Qt3DExtras::Qt3DWindow *view = new Qt3DExtras::Qt3DWindow();
// 将Qt3DWindow添加到当前QWidget中
QVBoxLayout *layout = new QVBoxLayout(this);
QWidget *container = QWidget::createWindowContainer(view, this);
layout->addWidget(container);
}
```
3. 接下来,可以在Qt3DWindow中添加3D场景、相机、光源等元素,实现自定义的3D渲染效果。具体的代码可以参考Qt3D的官方文档。
相关问题
QT中加载3D飞机模型的3D代码
以下是在QT中加载3D飞机模型的示例代码:
```cpp
#include <Qt3DExtras/Qt3DWindow>
#include <Qt3DExtras/QOrbitCameraController>
#include <Qt3DExtras/QPhongMaterial>
#include <Qt3DExtras/QGoochMaterial>
#include <Qt3DExtras/QCuboidMesh>
#include <Qt3DCore/QEntity>
#include <Qt3DRender/QCamera>
#include <Qt3DRender/QPointLight>
#include <Qt3DRender/QMesh>
int main(int argc, char *argv[])
{
QGuiApplication app(argc, argv);
Qt3DExtras::Qt3DWindow view;
view.defaultFrameGraph()->setClearColor(QColor(QRgb(0x4d4d4f)));
QWidget *container = QWidget::createWindowContainer(&view);
QSize screenSize = view.screen()->size();
container->setMinimumSize(QSize(200, 100));
container->setMaximumSize(screenSize);
Qt3DCore::QEntity *rootEntity = new Qt3DCore::QEntity;
Qt3DRender::QCamera *cameraEntity = view.camera();
cameraEntity->setProjectionType(Qt3DRender::QCameraLens::PerspectiveProjection);
cameraEntity->setPosition(QVector3D(0, 0, 40));
cameraEntity->setViewCenter(QVector3D(0, 0, 0));
Qt3DCore::QEntity *lightEntity = new Qt3DCore::QEntity(rootEntity);
Qt3DRender::QPointLight *light = new Qt3DRender::QPointLight(lightEntity);
light->setColor("white");
light->setIntensity(1);
lightEntity->addComponent(light);
Qt3DCore::Transform *lightTransform = new Qt3DCore::QTransform(lightEntity);
lightTransform->setTranslation(cameraEntity->position());
lightEntity->addComponent(lightTransform);
Qt3DCore::QEntity *modelEntity = new Qt3DCore::QEntity(rootEntity);
Qt3DRender::QMesh *modelMesh = new Qt3DRender::QMesh;
modelMesh->setSource(QUrl::fromLocalFile("path/to/your/airplane.obj"));
Qt3DExtras::QPhongMaterial *modelMaterial = new Qt3DExtras::QPhongMaterial;
modelMaterial->setDiffuse(QColor(QRgb(0xbeb32b)));
modelMaterial->setShininess(100);
modelEntity->addComponent(modelMesh);
modelEntity->addComponent(modelMaterial);
view.setRootEntity(rootEntity);
container->show();
Qt3DExtras::QOrbitCameraController *camController = new Qt3DExtras::QOrbitCameraController(rootEntity);
camController->setCamera(cameraEntity);
return app.exec();
}
```
请将代码中的 `path/to/your/airplane.obj` 替换为您的3D飞机模型文件的路径。此代码使用了Qt3D模块来加载3D模型,并在场景中添加了光源和相机控制器。
Qt5.9如何获取并显示obj模型3D文件
要在Qt5.9中获取并显示obj模型3D文件,可以使用Qt3D模块。具体步骤如下:
1. 首先,在.pro文件中添加Qt3D模块:
```
QT += 3dcore 3drender 3dinput 3dextras
```
2. 在Qt代码中创建一个Qt3DWindow对象,并将其设置为主窗口:
```
Qt3DExtras::Qt3DWindow *view = new Qt3DExtras::Qt3DWindow();
QWidget *container = QWidget::createWindowContainer(view);
setCentralWidget(container);
```
3. 创建一个Qt3DScene和Qt3DEntity,并将其添加到Qt3DWindow中:
```
Qt3DCore::QEntity *rootEntity = new Qt3DCore::QEntity();
view->setRootEntity(rootEntity);
```
4. 加载obj模型文件:
```
Qt3DRender::QMesh *mesh = new Qt3DRender::QMesh();
mesh->setSource(QUrl::fromLocalFile("path/to/your/obj/file"));
```
5. 创建一个Qt3DMesh,并将其设置为QMesh的父级:
```
Qt3DCore::QEntity *entity = new Qt3DCore::QEntity(rootEntity);
Qt3DRender::QMeshRenderer *meshRenderer = new Qt3DRender::QMeshRenderer(entity);
meshRenderer->setMesh(mesh);
```
6. 最后,将Qt3DWindow显示出来:
```
view->show();
```
这样,就可以在Qt5.9中获取并显示obj模型3D文件了。
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