How to get values of modified properties on modified actors in Level Snapshot

Development Cinematics & Media Virtual Production
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1

We would like to access the list of modified properties and their values for every modified Actor in a level snapshot so we can compare the values to the current values just like you can see when selecting a level snapshot in the Level Snapshots Editor.

Right now we can get a list of the modified actors by calling ULevelSnapshot::HasChangedSinceSnapshotWasTaken() but not sure how to get the modified properties for each actors and the values. I can see it being generated in SLevelSnapshotsEditorResults::GenerateTreeViewChildren_ModifiedActors() but it’s a bit unclear how I could reuse that code to get the info that I want.

2

Would implementing a custom filter work for you? You could then run ULevelSnapshotsFilteringLibrary::DiffAndFilterSnapshot which would take your filter as input and would call the filter per actor / property. You should get a handle to the path to the property with the actor when it is called and you could extract the information out that way.