Separating SharedComponents from similar entities

[hot plume]

Hi everyone, I have a problem :

In Play Mode, I'm dynamically spawning entities (all from the same gameObject prefab), and when spawned I want to modify their body colour and the tool they are using (the entities are humanoid characters who can collect resources)

I have a script working fine, but the problem I'm having is it's modifying all already spawned characters too each time I modify a new spawned one (probably because it's a shared component), how to separate each entity from one another (by maybe setting a separate archetype chunk for each one of them, or another solution if it exists).
My entities don't have any RenderMeshUmanaged components or anything alike (probably because I'm using the Rukhanka - ECS Animation System asset to animate them, so the gameObject prefab's SkinnedMeshRenderer component is baked into a custom component related to that asset)

Here's my code :
https://paste.mod.gg/yklfxtcgpdoa/0

Thanks in advance!

[whole kindle]

Hi. No, Rukhanka just adds custom components to the baked SMR entity. Initial preparation (and submesh splitting) is a task of Entities.Graphics

[hot plume]

Oh hiya, okedoke then, I had seen that one the child entities had a Animated Skinned Mesh Component, and thought that was what had become of the SkinnedMeshRenderer through the Subscene.
Anyhoo, any thoughts on the main problem at hand?

[flint magnet]

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[whole kindle]

Your approach a bit wrong. In your code you are changing material property directly. This affects all entities that using this material. You need to use material overrides: https://docs.unity3d.com/Packages/com.unity.entities.graphics@1.4/manual/material-overrides.html

Note that you need to work with submesh render entities, which is not the skinned mesh render entity.

[hot plume]

Hi there,

Thanks for your help, but it seems I missed something along the way using Material Overrides, as they are not working.

First Attempt: Unity Default Component

I tried using the Unity default component. After setting up my shader graph color parameter correctly (Hybrid per Instance) and applying it to my character's prefab child GameObject with a SkinnedMeshRenderer (in Edit Mode before conversion to ECS through the SubScene), it worked fine to modify the color of the character through the inspector. However, once converted, it becomes a default MaterialColor IComponentData, and changing it by code doesn't affect the color of the entity character.

Second Attempt: Custom Code

I then tried doing it entirely by code using this method. I created a custom IComponentData with the MaterialProperty attribute and, through a Baker script, added that component to the same entity with the Rendering component. I also updated its value with my system, but this didn't work either.

Here’s my code:

• Custom IComponentData
• Updated RenderingSystem

[hot plume]

Do you mean that you normally can't override SkinnedMeshRendered materials? (Only RenderMeshUnmanaged component materials)
As said above, through the inspector on the unconverted gameObject it works fine, does it stop working once in ECS form?