Resolved Setting LocalTransform makes entity not visible

Sigh. I HATE these moments. I don't know why, but now It works. ¯\_(ツ)_/¯

This works, for what it's worth considering the source

Code (CSharp):

1.            
2. float3 position = new float3(1985, layer, -1200);
3.            
4. var localTransform = LocalTransform.FromPositionRotation(position, quaternion.identity);
5. entityCommandBuffer.SetComponent(entity, localTransform);
6.  

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Ok,

Welcome back to "James is doing something stupid"

I have narrowed down the problem I have when I instantiate some objects when the game starts.

Code (CSharp):

1.  
2. int index = randomComponent.ValueRW.random.NextInt(0, trafficSpawnerComponent.Length);
3. Entity spawnedEntity = EntityManager.Instantiate(trafficSpawnerComponent.ElementAt(index).prefab);
4.  
5. float3 position ;
6. position.y = 70;
7. position.z = -1200;
8. position.x = 1985;
9.  
10. var localTransform = LocalTransform.FromPositionRotation(position, quaternion.identity);
11.  
12. //ANY OF THESE CAUSE THE ENTITY TO DISAPPEAR
13. //entityCommandBuffer.SetComponent(spawnedEntity, new LocalTransform { Position = position });      //entityCommandBuffer.SetComponent(spawnedEntity, localTransform);
14. //entityCommandBuffer.SetComponent(spawnedEntity, new LocalTransform { Position = position, Rotation = new quaternion(), Scale = 1.0f });
15.  
16.  

Within the Entities Hierarchy the entity's values are visible and set correctly:

https://imgur.com/a/Si2c8E7

This is a simple sphere and unlit material. Again, if I run this without attempting to set its position, the entity is visible in game and scene views.

So.... what dumbass thing am I doing wrong?

Thanks

 

On Line 14 of your example, you should set the Rotation to quaternion.identity.
Even though I am not on the 1.0 Transform version, I can imagine a zeroed quaternion can result into an "invalid" transform matrix which can't be rendered.

 

Code (CSharp):

1.  Entity instance = state.EntityManager.Instantiate(spawner.ValueRO.Prefab);
2.                             //ecb.AddComponent(instance, new Parent { Value = entity });
3.                             ecb.AddComponent(instance, new LocalTransform
4.                             {
5.                                 Position = SystemAPI.GetComponent<LocalToWorld>(entity).Position,
6.                                 Rotation = quaternion.identity,
7.                                 Scale = SystemAPI.GetComponent<LocalTransform>(spawner.ValueRO.Prefab).Scale
8.                             });

Hopefully this helps. You have to use LocaltoWorld. If you set a parent you don't need any positions.

 

I will look into this, thank you kindly.