Why setting application.targetframerate doesn't work

1） Set up Application.targetFrameRate There's no reason why it doesn't work
​2）Unity How to monitor program exit , Including being backstage kill
3） Reduce Mesh LOD Whether it will reduce the execution times of slice functions
4）TMP SubMeshUI The reason for this

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This is the first 304 piece UWA Push of technical knowledge sharing . Today we continue to select and develop a number of 、 Optimization related issues , Suggested reading time 10 minute , If you read it carefully, you will get something .

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Performance

Q： Set in the code Application.targetFrameRate It didn't work , What's the reason, please ？

A1： You can check the engine settings VSync Set whether to turn on . Here's the picture , It can be adjusted to Don't Sync Try again. .

After testing ,VSync closed ,Application.targetFrameRate The lock frame effect of takes effect normally ;VSync On , The actual frame rate will always reach the maximum frame rate supported by the device , So that Application.targetFrameRate The lock frame of is invalid .

For example , The millet 10 Test on , Turn on VSync after , Although set in the code Application.targetFrameRate=60, But the actual frame rate will reach 90, Thus making the project GPU The pressure is higher than expected .

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A2： Mobile platforms will be related to mobile phones , Will not exceed the maximum refresh rate . Take a look at the official documents :
Application-targetFrameRate - Unity Script API

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Set in the code Application.targetFrameRate It didn't work , What's the reason, please ？ -- UWA Question and answer | Game developer interactive Q & a community | Tiger Technology

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Android

Q： If it's done MonoBehaviour.OnApplicationQuit This method , stay PC Or you can use it under the editor to listen , But what I found was that , Release Android This function will not be monitored .

Use Application.Quit Method exit can monitor , But if you are directly killed by the backstage , Then you can't monitor .

Is there any other way , Be able to （ Forced exit or background kill etc. ） Program exit detected ？

A： Export the project as Android project , The exported project directory unityLibrary\src\main\java\com\unity3d\player There is one below UnityPlayerActivity.Java file , The code inside is controlling UnityPlayer Life cycle of .

Android Life cycle ：

According to the above cycle , The normal exit of the game will call Quit, System kill process will not trigger Quit.

So it may be suggested to consider some other ways . such as onSaveInstanceState() and onRestoreInstanceState() These two events , And by writing Servise Auxiliary detection Uniy Activity status of the project .

If you want to write Android direct interaction Unity Code for , You can also write like this ：
mUnityPlayer.UnitySendMessage(“receiveObj”, “UnityMethod”, “This is args.”);

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Set in the code Application.targetFrameRate It didn't work , What's the reason, please ？ -- UWA Question and answer | Game developer interactive Q & a community | Tiger Technology

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Rendering

Q： The lens is fixed , If the model uses Mesh LOD In addition to reducing the number of vertex function executions , It will also reduce the number of piecewise functions ？

Or what factors affect the execution times of slice functions ？

A1： Then you can only reduce the screen resolution or perform depth culling ,AlphaTest And other means of early elimination .

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A2： Add upstairs , Mainly to see Primitive The number of pixels on the screen after rasterization （ This is affected by the rendering resolution ）. Of course, we should also consider the elimination of hidden surfaces ,Early-Z Etc. avoid Fragment Factors of calculation .

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Set in the code Application.targetFrameRate It didn't work , What's the reason, please ？ -- UWA Question and answer | Game developer interactive Q & a community | Tiger Technology

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TextMeshPro

Q： Now in use Unity 2019.4.34f1 Version and TextMeshPro 2.1.6 Version development function , There are two fonts in the project ,Font_Main and Font_Main_Fallback.

If be in, Font_Main Set up Fallback Font Assets, Created TextMeshPro There will be a child node under the text component TMP SubMeshUI [Font_Test_1 Material + KaiTiJianCu Atlas], And it can't be deleted , After deletion, it will appear again automatically ; If not set Fallback Font Assets, Then the child nodes TMP SubMeshUI [Font_Test_1 Material + KaiTiJianCu Atlas] Delete , What is the function of this ？ Will it affect performance ？

A： If there is no corresponding Unicode When writing , Will use Fallback The font shows .

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Set in the code Application.targetFrameRate It didn't work , What's the reason, please ？ -- UWA Question and answer | Game developer interactive Q & a community | Tiger Technology

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