Unity project optimization case 1

For the optimization problems encountered in the work , Make a note of , Provide some ideas for everyone to optimize their own projects .
A company has been established recently VR project . I found that the performance problem was serious when I was about to deliver

Usage environment

unity 2018.4.36
cpu i5 10400f
The graphics card 2060 6g
Memory 16G

Analyze and solve the problem

When the program runs, it runs to 100 millisecond ~
Optimization idea
1. Install the development environment on the corresponding computer
2. Use Profile Debug and locate performance problems

a.SkinMesh Excessive consumption .
b. There is one Depth The related consumption is also great . Affect every frame about 10~20 millisecond 

3.SkinMesh It's easier to deal with , There are too many animated models , The processing idea is based on whether it is visible , Hide unwanted animation models , Open it when you need it .
4. The corresponding calling function is not found for depth related , Then I looked at the number of calls in each frame 50 many times . Then guess it has something to do with the camera , Finally, it is located that a certain function is used for camera rendering RenderTexture. And then created 50 Multiple cameras . However, this function does not require the camera to be activated all the time , Then change the camera to the de activated state .
5. adopt FrameDebug It is found that the consumption of shadow is also more , Then I observed the scene and found that the object did not produce shadows , The option to generate shadows has been turned off ( As for why to turn off the shadow is another topic ~). Then since the current effect of the scene does not need shadows , But there will be performance consumption on the shadow , Turn off the shadows on the directional light in the scene .

Final effect

Final effect from each frame 100 millisecond , Optimize to most scenes 5 millisecond , Scenes with many animations of individual models 12 Millisecond or so . It takes a total of time to program 2 God , The fine arts 2 God .