Multi physics scenes in edit mode

Hi!

If I call SceneManager.CreateScene("My new scene", new CreateSceneParameters(LocalPhysicsMode.Physics2D)) in edit mode it logs an error telling me that this method can only be called in play mode and that I should use EditorSceneManager.NewScene() instead.

But EditorSceneManager.NewScene() doesn't receives the CreateSceneParameters parameter and I can't find a way to setup the new scene with its own local physics.

I assumed this was possible because in the documentation for PhysicsScene2D.Simulate it is stated that we can manually simulate physics in edit mode. Is that possible?

I'm trying to create a tool to predict the physics behavior that my player will have in play mode to support the level designer.

I'm using Unity 2018.3.14f1.

 

Having trouble doing a similar thing... Did you ever find a solution?

 

Bump!
Happening in v2019 too. So we basically can't simulate a different physics scene other than the defaultPhysicsScene in Edit Mode. We must simulate all physics.

Has anybody managed to set the "Physics Scene" manually to a scene created with EditorSceneManager.NewScene?

I create a scene and an object that has a rigidbody, and I want to simulate it , but only this object in this particular scene. But we can't do this... I'll have to read the code inside the CreateScene method to see what they do...

 

I wrote a similar post in the scripting section. Seems like, at least until 2022's docs, this can't be done.
https://forum.unity.com/threads/impossible-to-have-multiphysics-scenes-in-edit-mode.1243366/

So this is a feature request. Allow multiphysics scenes in editor, passing a new PhysicsScene, just like with SceneManager.CreateScene... . This can be useful for simulating some objects during edit mode on a separate scene with its own PhysicsScene.Simulate() and avoid simulating the whole scene by calling Physics.Simulate()

 

So I had this same issue.

What worked for me was to create a preview scene instead. It appears that by default it has it's own physics:

Code (CSharp):

1. #if UNITY_EDITOR
2.             Scene S = EditorSceneManager.NewPreviewScene();
3. #else
4.             Scene S = SceneManager.CreateScene("SmooshScene", csp);
5.             CreateSceneParameters csp = new CreateSceneParameters(LocalPhysicsMode.Physics3D);
6. #endif