要导入和使用模块的 QML 类型，使用下列语句：
import Qt3D.Extras 2.12
| ConeGeometry | 允许创建 3D 空间锥体 |
| ConeMesh | 锥形网格 |
| CuboidGeometry | Allows creation of a cuboid in 3D space |
| CuboidMesh | 长方体网格 |
| CylinderGeometry | Allows creation of a cylinder in 3D space |
| CylinderMesh | 圆柱体网格 |
| DiffuseSpecularMaterial | Default implementation of the phong lighting effect |
| ExtrudedTextGeometry | Allows creation of a 3D text in 3D space |
| ExtrudedTextMesh | A 3D extruded Text mesh |
| FirstPersonCameraController | Allows controlling the scene camera from the first person perspective |
| ForwardRenderer | Default FrameGraph implementation of a forward renderer |
| GoochMaterial | Material that implements the Gooch shading model, popular in CAD and CAM applications |
| MetalRoughMaterial | This material uses an effect with a single render pass approach and performs per fragment lighting. Techniques are provided for OpenGL 3 and OpenGL ES 3 |
| OrbitCameraController | Allows controlling the scene camera along orbital path |
| PerVertexColorMaterial | Default implementation for rendering the color properties set for each vertex |
| PlaneGeometry | Allows creation of a plane in 3D space |
| PlaneMesh | A square planar mesh |
| SkyboxEntity | Convenience Entity subclass that can be used to insert a skybox in a 3D scene |
| SphereGeometry | Allows creation of a sphere in 3D space |
| SphereMesh | A spherical mesh |
| Text2DEntity | Allows creation of a 2D text in 3D space |
| TorusGeometry | Allows creation of a torus in 3D space |
| TorusMesh | 环形网格 |
