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Level Sequence does not work properly when combined with World Composition

In trying to use the new Level Sequence, I've discovered that it doesn't seem to work when combined within a World Composition. The Level Sequence plays at its original location irregardless of the translation that should be applied when it is used within the World Composition. This differs from the legacy Matinee behavior which does properly apply the translation. I have verified that this behavior exist on both the 4.13 and 4.14-preview2 releases.

To illustrate the problem, I created a project with 2 levels(Level1, Level2) under a folder WorldComp. And I have another level called MyWorldComp as the world composition.

Within each level, I created one Matinee movement and one Level Sequence movement. I'm only showing the screenshots for one of the levels but the other level is the same except I used different meshes. The floor mesh is the standard 400x400 starter content floor and it is located at 0,0,0 within the level.

This following images show the level setup with the Level Sequence and Matinee alt text

In each level blueprint, I wired the begin play event to play both the Matinee and the Level Sequence.

alt text

Now within the World Settings of the MyWorldComp level, I enabled World Composition and then opened the Levels and World Composition dialogs. In the World Composition dialog, I created the MyLayer layer that turns off the streaming distance and then I added the two levels into that layer. After that I set the levels such that they were not in there original locations. For Level1 x=0, y=-800 and Level2 x=-400, y=-800. Now when I play the level, the Matinee objects translate correctly(shifted properly) but the Level Sequence objects move in there original untranslated(not shifted) position. alt text

In order for the Level Sequences to be really useful in large worlds, the behavior exhibited by the Matinee is obviously preferred. Hopefully this is the plan. Otherwise it would be nice to mention this inadequacy in the Level Sequence and/or World Composition documentation.

Product Version: UE 4.13
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asked Nov 05 '16 at 04:01 AM in Bug Reports

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avatar image WolfDigitalLLC Sep 12 '17 at 05:45 PM

Is there a work around for this? It still exists in 4.17 which means the level sequencer is completely useless in our game. I see the bug status is backlogged. Any help on how to get around this would be great.

I feel like warning at least needs to be placed next to World Origin Shifting in the World Composition documentation to let others know before they get too deep into a game that has been built on World Origin Shifting. We already had to move our game from 4.16 to 4.17 because instanced foliage was broken in 4.16 when the world origin shifted. Maybe World Origin Shifting needs to be put in an experimental category for now?

Currently any meshes we have added to a movement track in sequencer will disappear off to the origin of the level when the sequence is triggered. Any help would be appreciated.

avatar image 郭志斌 Oct 11 '17 at 11:31 AM
avatar image CommandOfTheSea Jan 31 '19 at 09:34 AM

That's indeed a workaround, attach the camera to an actor in the scene, then it's location will "shift" too once you start recording, as it "shifts" with the attached actor :)

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Hey CodeTackler,

So we have a jira issue in place for this as UETOOL-747. It cannot be publicly listed as it isn't under the UE project, but we are working on it. Thank you for reporting this though.

-Matt W.

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answered Nov 09 '16 at 07:57 PM

avatar image Matt.Williams Nov 10 '16 at 03:20 PM

In my comment on UETOOL-747, I asked if we should create a new bug and one of our engineers agreed. I've entered UE-38454.

-Matt W.

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