使用插件nView可以让任何摄像机里出现的模型物体是否可视，包括视窗、渲染是否可视等。
Determine objects’ visibility from any camera, or being visible in a “reflection” of another object. Knowing this, you can:
- Select only the visible objects!
- Set multiple visibility attributes of objects or collections at once, including for the viewport, render, and view layer!
- Hide demanding collections or objects that affect performance, without affecting what’s seen by the camera!
- Hide objects dynamically in an animation, to speed up playback and rendering long animations!
