On mask culling of unity

The fundamental purpose of mask culling is to unity Optimize the scene , Sometimes too many scenes occupy too much computer memory , Packaging will also affect the running equipment . So at this time, mask culling is required , Do not render things outside the camera , To save memory and improve running speed .
First make sure the camera is checked occlusion This attribute , This attribute is to give the camera the ability to perform mask culling. Then, in the attribute column of the object to be mask culled static Medium occ Check the first two attributes , One is Occluder Static （ Static shelter ） One is Occuludee Static（ Static occlusion ）.
Then a... Will appear in the property panel occiusion Click on the properties of back Rendering .

After rendering, click the camera and an option will appear , choice visualize, Then move the camera , You can realize the mask culling function