Question Unity ECS PostTransformMatrix no show in baking preview when object uniform scale

hello

when I want to change the scale no-uniform, from the example
https://github.com/Unity-Technologi...ets/HelloCube/2. IJobEntity/RotationSystem.cs

just like this

Code (CSharp):

1.  
2. void Execute(
3.              ref LocalTransform transform
4.             ,ref PostTransformMatrix postTransform
5.             ,in HelloCubeRotation rotationSpeed
6.             )

In Entity baking preview, if the object before baking, the scale is 1,1,1, the PostTransformMatrix IComponentData will not show in the preview, and in script can't execute because can't find PostTransformMatrix too.



Only change the object scale to no-uniform, like 1,2,1, the PostTransformMatrix will show in the baking preview, and script can execute.


So if i have a object scale is 1,1,1, but have to change to 1,2,1, how to do this?
I have try to AddComponent when baking

Code (CSharp):

1.  
2. AddComponent(entity, new PostTransformMatrix
3.             {
4.                 Value = math.float4x4(1,0,0,0,
5.                 0,2,0,0,
6.                 0,0,1,0,
7.                 0,0,0,1)
8.             });

but the PostTransformMatrix still no show in preview, it seems to be removed auto, when it detect the object is uniform-scale. so how to change a uniform scale object to no-uniform-scale?

 

TransformUsageFlags has a flag for forcing that component to exist.

 

Code (CSharp):

1.  
2. var entity = GetEntity(TransformUsageFlags.Dynamic);
3. AddTransformUsageFlags(entity, TransformUsageFlags.NonUniformScale);
4.  

It works. Thanks.