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Qt 3D:简单的 QML 示例

一个 QML 应用程序,演示如何在Qt 3D 中渲染场景。

3D 对象渲染效果的截图

“简单示例”演示了如何在Qt 3D 中渲染场景。

运行示例

您可以通过以下方式运行该示例:

设置场景

我们在main.qml文件中设置整个场景。

为了能够使用 Q3D 和 Q3D Render 模块中的类型,我们必须导入这些模块:

import Qt3D.Core 2.0
import Qt3D.Render 2.0

我们首先创建的实体是一个 `Camera`(用于最终渲染的摄像机)和一个摄像机控制器,后者允许我们通过键盘或鼠标控制该摄像机:

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 )
}

RenderSettings 实体将 ForwardRenderer 指定为活动帧图:

components: [
    RenderSettings {
        activeFrameGraph: ForwardRenderer {
            clearColor: Qt.rgba(0, 0.5, 1, 1)
            camera: camera
            showDebugOverlay: true
        }
    },
    // Event Source will be set by the Qt3DQuickWindow
    InputSettings { }
]

事件源由 Qt3DQuickWindow 设定:

示例项目 @ code.qt.io

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