hybrid style ECS to render objects ?

Hello, does and one know how to use hybrid style ECS to render the object meshrenderer.

would be very interested to find out if it possible?

I would also like to know if ECS can take care of the physics?

Thanks

Daniel

 

You turn off the MeshRenderer, then you base your drawing on `Graphics.DrawMesh` or `Graphics.DrawMeshInstanced` instead. You can make a system with required data coming from ECS then loop through them to use those commands. In the future, those 2 commands would ideally accept native containers so no copy from ECS out is required. Currently the fast way to copy data out from ECS you can look in MeshInstanceRendererSystem.cs > CopyMatrices.

`MeshInstanceRendererComponent` together with `PositionComponent` `RotationComponent` etc. uses this approach by collecting/processing the matrix required for `Graphics.DrawMeshInstanced` and finally loop through them in a system. `Mesh` can go in an `ISharedComponentData`.

ECS does not support physics right now...

 

Hi, and thanks for the reply. In context of the hybrid system i am currently doing this:

Code (CSharp):

1.     struct Components
2.     {
3.         public Rotator rotator;
4.         public Transform transform;
5.         public MeshRenderer renderer;
6.      
7.     }
8.     protected override void OnUpdate()
9.     {
10.         foreach (var e in GetEntities<Components>())
11.         {
12.             var time = Time.deltaTime;
13.             e.transform.Rotate(0, e.rotator._speed * time, 0);
14.             //e.renderer.material.color = e.rotator._color;
15.         }
16.  
17.     }

How would i implement what you have suggested in this scenario?

 

here I've posted an example with physics and rendering using game objects
https://forum.unity.com/threads/thoughts-on-hybrid-mode.527129/

ECS part is a pure without using mono-behavior-components on entities

 

Line 12 should be outside of the loop. It will not change during execution of this loop and you are unnecessarily paying a cost of method call each loop iteration.

 

Hi Micz, thanks for that reply, yeah was on to that was just seeing if it made a difference