# Interpolation in HAVOK?

**URL:** <https://forum.babylonjs.com/t/interpolation-in-havok/40630>\
**Category:** Questions\
**Tags:** physics\
**Created:** [May 9, 2023, 2:11pm UTC](https://forum.babylonjs.com/t/interpolation-in-havok/40630 "2023-05-09T14:11:16Z")\
**Posts on this page:** 4\
**Page:** 2

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**Author:** ![qq2315137135](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/qq2315137135/32/32219_2.png) [@qq2315137135](https://forum.babylonjs.com/u/qq2315137135)\
**Post date:** [September 28, 2023, 3:09pm UTC](https://forum.babylonjs.com/t/interpolation-in-havok/40630/21 "2023-09-28T15:09:41Z")

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But when I tested it with a brand new browser, the flickering disappeared.  
This may have something to do with the browser environment

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**Author:** ![Cedric](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/cedric/32/2742_2.png) [@Cedric](https://forum.babylonjs.com/u/Cedric)\
**Post date:** [September 28, 2023, 3:10pm UTC](https://forum.babylonjs.com/t/interpolation-in-havok/40630/22 "2023-09-28T15:10:11Z")

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Do not forget that a web browser is a big beast. Garbage collection, other processes, JS engine…many things can happen.

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**Author:** ![qq2315137135](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/qq2315137135/32/32219_2.png) [@qq2315137135](https://forum.babylonjs.com/u/qq2315137135)\
**Post date:** [September 28, 2023, 3:16pm UTC](https://forum.babylonjs.com/t/interpolation-in-havok/40630/23 "2023-09-28T15:16:28Z")

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I found the reason for my flickering here, the jitter goes away when I disable the Immersive Web Emulator extension.

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**Author:** ![Frits\_Lyneborg](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/frits_lyneborg/32/32065_2.png) [@Frits\_Lyneborg](https://forum.babylonjs.com/u/Frits_Lyneborg)\
**Post date:** [September 29, 2023, 7:00am UTC](https://forum.babylonjs.com/t/interpolation-in-havok/40630/24 "2023-09-29T07:00:16Z")

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Exactly. And a physics emulation should always run smooth in the background. This is why one needs interpolation which is what I am trying to get at by documenting flicker/stutter WITHOUT rigidbodies 🙂

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