# Cannot rotate HDRI during gameplay

**URL:** <https://forums.unrealengine.com/t/cannot-rotate-hdri-during-gameplay/475840>\
**Category:** Rendering\
**Tags:** hdri, rotation, unreal-engine, question\
**Created:** [December 13, 2020, 2:55pm UTC](https://forums.unrealengine.com/t/cannot-rotate-hdri-during-gameplay/475840 "2020-12-13T14:55:46Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Idantim](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Idantim](https://forums.unrealengine.com/u/Idantim)\
**Post date:** [December 13, 2020, 2:55pm UTC](https://forums.unrealengine.com/t/cannot-rotate-hdri-during-gameplay/475840/1 "2020-12-13T14:55:46Z")

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Hi all,  
I have a scene with an HDRI backdrop actor (several, actually, but it really doesn’t matter).  
I am trying to rotate it during gameplay using the Level Blueprint, but when I press the button, I can see the backdrop image changing orientation for a split second, but it returns to 0 immediately.  
If I eject using F8 and view the actor, it seems as if it has the correct value in its slot, only that it did not actually rotate. If I manually change the number in the editor an press Enter, it does rotate.  
Seems as if there is a post-edit callback jumping after the “SetActorRotation” function which resets the update when called from BP. What am I missing here?  
For the record, I have tried every possible relative/absolute/world function there is on the actor or its root component, and they all give the same result.

 ![324654-hdri-bp.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/c/c/7/cc7b8f539a062a5ecbdd44b2c231a63ccc8b15ce.png)

 ![324655-hdri-trouble.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/f/f/1/ff115da151e30306e8e3fb63a8d7781bd1324421.png)

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**Author:** ![ppyht2](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@ppyht2](https://forums.unrealengine.com/u/ppyht2)\
**Post date:** [November 8, 2022, 3:41am UTC](https://forums.unrealengine.com/t/cannot-rotate-hdri-during-gameplay/475840/2 "2022-11-08T03:41:36Z")

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Did you ever solve this? I basically have the exact same problem.

- Rotate value is populated correctly in the editor
- HDRIBackdrop jitters but does not rotate
- If i disable visibility and enable again, HDRI updates to the expected rotation

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**Author:** ![WhereFree](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@WhereFree](https://forums.unrealengine.com/u/WhereFree)\
**Post date:** [December 29, 2022, 8:17am UTC](https://forums.unrealengine.com/t/cannot-rotate-hdri-during-gameplay/475840/3 "2022-12-29T08:17:00Z")

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we check HDRIBackdrop, we can find function CreatMaterial. And we can find this function help us set WorldRotation.

 ![blueprint](https://d3kjluh73b9h9o.cloudfront.net/original/4X/4/d/0/4d0c7af4a6c6a5f22c0f261a36c6445689063301.png)  
So after u change actor or SceneComponent, run CreatMatrial can rotate actor or SceneCompoent successfully.