HD Additional Camera Data and Convert to Entity

Unity Engine
,
1

Just wondering how do I conver a camera in HDRP to and entity with Covert to Entity Script.

Can’t remove Camera because HDAdditionalCameraData (Script) depends on it.

But im converting and injecting ? What am i missing here

5845834--620716--Screen Shot 2020-05-13 at 8.29.11 PM.png
5845834--620716--Screen Shot 2020-05-13 at 8.29.11 PM.png952×888 66.1 KB

2

You can use Convert and Destroy with HYBRID_ENTITIES_CAMERA_CONVERSION defined. Hybrid Renderer is smart enough to account for HD Additional Camera Data.

3

Do you have a simple example It does not seem to be working, Maybe subscenes not supported ?

4

I don’t use subscenes for the camera in my project. I only use subscenes for pure entities which so far has given me good results.

5

Is the intend workflow to use

public class CameraProxyConversion : MonoBehaviour, IConvertGameObjectToEntity
{
    public void Convert(Entity entity, EntityManager dstManager, GameObjectConversionSystem conversionSystem)
    {
#if HYBRID_ENTITIES_CAMERA_CONVERSION
#endif
    }
}

Then

public class CameraConversionSystem : GameObjectConversionSystem
{
    protected override void OnUpdate()
    {
        Entities.ForEach((Camera camera) =>
            {
                Entity eCamera = GetPrimaryEntity(camera); 
                Debug.Log("Camera Conversion");
                EntityManager.AddComponentData<CopyTransformFromGameObject>(eCamera, new CopyTransformFromGameObject());
                EntityManager.AddComponentData<CameraMainComponents>(eCamera, new CameraMainComponents());
                EntityManager.AddComponentData<CameraLodComponents>(eCamera, new CameraLodComponents()
                {
                    CameraLastPosition = camera.transform.position
                });
            }); 
    }
}

Feels like im making this more complex than needed ?

6

Afaik converting the camera in a subscene is still not supported, but should work outside one.

7

This code already exists in Hybrid Renderer. You should not have to do anything other than add the Scripting Define Symbol to your project.

#if HYBRID_ENTITIES_CAMERA_CONVERSION
    [WorldSystemFilter(WorldSystemFilterFlags.HybridGameObjectConversion)]
    public class CameraConversionSystem : GameObjectConversionSystem
    {
        protected override void OnUpdate()
        {
            Entities.ForEach((Camera camera) =>
            {
                AddHybridComponent(camera);
            });

#if HDRP_7_0_0_OR_NEWER
            Entities.ForEach((HDAdditionalCameraData data) =>
            {
                AddHybridComponent(data);
            });
#endif

#if URP_7_0_0_OR_NEWER
            Entities.ForEach((UniversalAdditionalCameraData data) =>
            {
                AddHybridComponent(data);
            });
#endif
        }
    }
#endif
8

Yes, I know :slight_smile: but if you try using this in a subscene the camera goes black as soon as you close the subscene (where the GOs are not present anymore)

9

Sorry. That reply was to @francois85 and I know subscenes don’t work. I don’t put the camera in a subscene have no reason to at the moment.

1 Like
10

Thank you ripping it out of subScene and adding HYBRID_ENTITIES_CAMERA_CONVERSION I can now see the entity

1 Like