Allow Unity internals to perform texture creation on any thread (rather than the dedicated render thread).
When set to true, Unity internals will try to create textures on a separate worker thread, rather than the dedicated render thread.
This results in less hitches during asynchronous loading as it removes some work from the render thread.
When this is set to false, texture creation occurs on the render thread.
Disabling threaded texture creation can be slightly faster in some cases as it avoids some synchronsation between threads, but may result in hitches with larger textures.
This could be set to false during a non interactive synchronous loading phase to minimise the loading time, then it should be disabled during main gameplay to minimise hitches for any streamed content.
如果平台支持在单独的线程上创建纹理，则该设置默认为 true。
如果平台不支持在单独的线程上创建纹理，Texture.allowThreadedTextureCreation 始终返回 false，即使在设置为 true 之后也如此。
Note: The C# API's for texture creation (E.g. new Texture2D) must always be called on the main thread. This setting does not alter that requirement.