How to convert gameobject into entity for Dots 1.0

Unity Engine
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I can’t find the way how to do that

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I think you must use subscenes and bakers(use bakers for example to convert prefabs to entity and then instantiate that prefab-entity later from the code) to convert GameObject to Entity here is tutorial : https://github.com/Unity-Technologies/EntityComponentSystemSamples/tree/master/DOTS_Guide - go ecs tutorial - i think there is no other way to convert except this one (basically other ways which means converting outside of subscene like in 0.51 ConvertToEntity tricks are not supported any more).

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Look at episode 4 (second half) and 5 of my dots training (link in my signature).
It will take you through the migration of a simple project in 0.51 to 1.0 and explain the baking workflow. :wink:

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Right, it turned out that a game object must be placed on the subscene :slight_smile: Thank you

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I’m completely stuck with this. What is the workflow if I need to load GameObjects as prefabs programmatically? How do I add them onto SubScene? Should I add a SubScene into every level scene or I can just create one programmatically once level scene loaded? Ideal would to be add SubScene programmatically and then add/convert GameObjects from prefabs to it. But I can not find the way to do it.
If I add GameObjects with Mono and Bakers into SubScene in Scene Editor - it works just fine. But I need to be able to add lots of prefabs on every level scene once loaded. Thanks for any advice.

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I have a partial solution - it “works”, but only if the mesh is on the root gameobject of the prefab.

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This is really a deal breaker. How do you use Entities with asset bundles?

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I’m using Entities but not the Graphics package. Putting a GameObject with a Mesh/Material into a SubScene causes it to disappear. That’s just unacceptable for the project I’m working on. I need something like Convert To Entity. I tried creating my own with a custom authoring script in MonoBehaviour but as soon as the entity is created and the GameObject is destroyed it throws an error saying the EntityManager has been destroyed.

I also hate how they’ve removed the Asset Menu to automatically create Components/Authoring/System scripts. It’s also very buggy when using Unity in a 2D project. Not very much liking Entities 1.0 so far. Keep going back to 0.51.

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Adding back the asset menu to create dots related script is relatively easy.
I’ve put mine on GitHub so feel free to use them.
https://github.com/WAYN-Games/DOTS-Script-Templates

If you are not using the graphics API you will have to use the hybrid approach.
I did a video that cover how to use it for animated character.

https://www.youtube.com/watch?v=vs6h4waQpPA

If you are using only this approach you may even be able to improve on it and not have to rely on a prefab which would make the authoring experience better.

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I’m using Graphics.DrawMeshInstanced. I use GameObjects so that I have a visual representation of what I’m working with in scene view then the GameObjects are destroyed (Convert to Entity as I’m currently using 0.51) and everything is rendered using Graphics.DrawMeshInstanced, inside a SystemBase, exactly as they are seen in the scene view.

Seems in order to do anything remotely similar in 1.0 you have to do a lot of hacky stuff.