How to pre-build scene at run time?

I don't have a definitive answer, but I'm commenting to follow the question since I expect to come up against the same problem shortly. $$anonymous$$y levels are procedurally-generated and I currently generate each new scene upon load, but as the game is growing increasingly complex, this is now taking some considerable time... I've investigated ways of trying to pre-load the scenes up-front and then save them ready to switch to, but AFAI$$anonymous$$ it's not possible to save a dynamically-created scene at runtime.

What I've attempted to do is to use LoadSceneAsync to load the scene additively, and then switch to it when the async operation is complete - I can't tell from your description whether that would work for you too, but that process seems to be a bit buggy/badly-documented, since it appears you can't choose to manually activate a loaded scene if it was loaded additively

(see

• http://answers.unity3d.com/questions/1073557/additively-loaded-scene-gets-stuck-at-90-even-if-a.html#answer-1073667

• http://answers.unity3d.com/questions/1146134/unclear-api-of-scenemanagerloadsceneasync-unity-53.html

This does not answer your question, but can you modify the design to stream the assets in & out of one scene, rather than using multiple scenes? There's a good introductory GDC video by one of the Firewatch developers on this topic, explaining how they made an open world in Unity using this technique.

Thanks for your comments. I am currently using the approach suggested by $$anonymous$$sefan. This is not very elegant but it does the job. We will see if someone will come up with a better idea!