qt加载obj模型 请给出过完整代码
时间: 2023-11-12 09:09:07 浏览: 93
好的,以下是一个简单的Qt加载obj模型的完整代码示例:
```cpp
#include <QtWidgets/QApplication>
#include <QtWidgets/QMainWindow>
#include <Qt3DExtras/Qt3DExtras>
#include <Qt3DCore/Qt3DCore>
#include <Qt3DRender/Qt3DRender>
#include <QUrl>
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
// 创建3D场景
Qt3DExtras::Qt3DWindow *view = new Qt3DExtras::Qt3DWindow();
view->defaultFrameGraph()->setClearColor(QColor(QRgb(0x4d4d4f)));
// 创建实体
Qt3DCore::QEntity *rootEntity = new Qt3DCore::QEntity();
// 创建相机
Qt3DRender::QCamera *cameraEntity = view->camera();
cameraEntity->setPosition(QVector3D(0, 0, 40));
cameraEntity->setViewCenter(QVector3D(0, 0, 0));
// 创建灯光
Qt3DCore::QEntity *lightEntity = new Qt3DCore::QEntity(rootEntity);
Qt3DRender::QPointLight *light = new Qt3DRender::QPointLight(lightEntity);
light->setColor("white");
light->setIntensity(1);
lightEntity->addComponent(light);
Qt3DCore::QTransform *lightTransform = new Qt3DCore::QTransform(lightEntity);
lightTransform->setTranslation(QVector3D(0, 0, 20.0f));
lightEntity->addComponent(lightTransform);
// 加载obj模型
Qt3DRender::QMesh *model = new Qt3DRender::QMesh();
model->setSource(QUrl::fromLocalFile("path/to/your/model.obj"));
// 创建实体组件
Qt3DCore::QEntity *modelEntity = new Qt3DCore::QEntity(rootEntity);
modelEntity->addComponent(model);
// 创建3D渲染器
Qt3DExtras::QPhongMaterial *material = new Qt3DExtras::QPhongMaterial(modelEntity);
material->setDiffuse(QColor(QRgb(0xBEBEBE)));
material->setSpecular(QColor(QRgb(0x808080)));
modelEntity->addComponent(material);
// 将根实体组件添加到场景中
view->setRootEntity(rootEntity);
// 显示窗口
QMainWindow window;
window.setCentralWidget(QWidget::createWindowContainer(view));
window.resize(1024, 768);
window.show();
// 进入Qt主事件循环
return app.exec();
}
```
你需要替换模型路径 "path/to/your/model.obj" 为你自己的obj文件路径。通过运行该代码,你将可以在一个黑色背景的3D场景中看到加载的obj模型,并且可以使用鼠标和键盘控制视角的移动。
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