# Thin Instances: optimize bounding info refresh performance

**URL:** <https://forum.babylonjs.com/t/thin-instances-optimize-bounding-info-refresh-performance/63256>\
**Category:** Feature requests\
**Tags:** performance, boundingbox, algorithm\
**Created:** [April 23, 2026, 8:36am UTC](https://forum.babylonjs.com/t/thin-instances-optimize-bounding-info-refresh-performance/63256 "2026-04-23T08:36:07Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![kzhsw](https://avatars.discourse-cdn.com/v4/letter/k/848f3c/32.png) [@kzhsw](https://forum.babylonjs.com/u/kzhsw)\
**Post date:** [April 23, 2026, 8:36am UTC](https://forum.babylonjs.com/t/thin-instances-optimize-bounding-info-refresh-performance/63256/1 "2026-04-23T08:36:07Z")

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Part of [Draft: Fast BoundingInfo](https://forum.babylonjs.com/t/draft-fast-boundinginfo/62770)

Playground:

> **[Babylon.js Playground](https://playground.babylonjs.com/#V1JE4Z%23273)**
>
> Babylon.js playground is a live editor for Babylon.js WebGL and WebGPU 3D scenes

Open devtools to see bench result in console:

 ![chrome](https://us1.discourse-cdn.com/flex024/uploads/babylonjs/original/3X/6/1/61bb73ca279a8f4777f84abda5d9a8202855f81a.png)  
 ![firefox](https://us1.discourse-cdn.com/flex024/uploads/babylonjs/original/3X/0/4/045f39c0bee96f040c33ba831f627dc137cb6b8e.png)

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**Author:** ![CrashMaster](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/crashmaster/32/23662_2.png) [@CrashMaster](https://forum.babylonjs.com/u/CrashMaster)\
**Post date:** [April 23, 2026, 11:43am UTC](https://forum.babylonjs.com/t/thin-instances-optimize-bounding-info-refresh-performance/63256/2 "2026-04-23T11:43:45Z")

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![image](https://us1.discourse-cdn.com/flex024/uploads/babylonjs/original/3X/3/b/3bdc5b79ca89079f60335e8f9d7a423b0ce115c5.png)

Damn that’s very good! Is there a catch x) ?

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**Author:** ![Deltakosh](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/deltakosh/32/26635_2.png) [@Deltakosh](https://forum.babylonjs.com/u/Deltakosh)\
**Post date:** [April 23, 2026, 3:29pm UTC](https://forum.babylonjs.com/t/thin-instances-optimize-bounding-info-refresh-performance/63256/3 "2026-04-23T15:29:22Z")

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yeah same question lol!