ExecuteAlways dead end with conversion

I have hit a wall with DOTS and wonder if there is any plan from Unity to fix it.

Basically I am creating a system that render a canvas to a texture, and then applies it to some materials (in this case, on the pages of a notebook). In this scenario, I want to be able to build my book pages in edit mode.

The problem is that the camera does not render anything if added to a subscene and my systems won't run on anything that is not in a subscene.

Is there any plan to support ExecuteAlways on entities converted outside of subscenes?

 

You are probably looking for the newly HybridComponent https://github.com/Unity-Technologi...ECSSamples/Assets/StressTests/HybridComponent

There is also that awesome article, it mentions the HybridComponent near the end https://gametorrahod.com/game-object-conversion-and-subscene/

 

Thanks for the very useful information!

Unfortunately, it looks like Camera cannot be added with AddHybridComponent. It works for all other types I've tried such as Image, Canvas and RectTransform, but the camera is never added to the entity and consequently never renders...

 

I too had problems with cameras and companion gameobjects. It would be nice to get an official answer on the long term roadmap for them(companion/hybrid gameobjects), what with the warning and all.

 

Oh, that's sad, never used with Camera, but I thought it would work. I wonder if there are any other components that don't work the same when using it as HybridComponents...

 

My current understanding is that if you have a Subscene open and livelink enabled, there will be a World with systems being updated and ExecuteAlways should work.

Outside of this you need to call:

DefaultWorldInitialization.DefaultLazyEditModeInitialize();

followed by

EditorApplication.QueuePlayerLoopUpdate();

(e.g. on Editor Update)
But.. as ever, I could be out of date. I'd also value official Unity input here if there's a better approach.

N.B. In my case I want to add specific systems to run at edit time so I do something along the lines of:

Code (CSharp):

1. DefaultWorldInitialization.DefaultLazyEditModeInitialize();
2. var _TweenWorld = World.DefaultGameObjectInjectionWorld;
3. List<System.Type> systems = UnityEditor.TypeCache.GetTypesDerivedFrom(typeof(MyComponentSystemBase));
4. DefaultWorldInitialization.AddSystemsToRootLevelSystemGroups(_TweenWorld, systems);
5. ScriptBehaviourUpdateOrder.UpdatePlayerLoop(_TweenWorld);

Though I remember seeing some API that finds all systems with the ExecuteAlways attribute for example.
Hope that helps.