# Use thinInstance and billboradMode

**URL:** <https://forum.babylonjs.com/t/use-thininstance-and-billboradmode/57098>\
**Category:** Questions\
**Created:** [March 13, 2025, 8:54am UTC](https://forum.babylonjs.com/t/use-thininstance-and-billboradmode/57098 "2025-03-13T08:54:17Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![lonely4](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/lonely4/32/45566_2.png) [@lonely4](https://forum.babylonjs.com/u/lonely4)\
**Post date:** [March 13, 2025, 8:54am UTC](https://forum.babylonjs.com/t/use-thininstance-and-billboradmode/57098/1 "2025-03-13T08:54:17Z")

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Hello everyone!

when i use thinInstance and billboradMode, the display effect is inconsistent with the default or InstancedMesh。 Is there a problem with this?

I hope the effect is consistent with when using InstancedMesh。

Any help appreciated!

repo: [thinInstance with billboardMode | Babylon.js Playground](https://playground.babylonjs.com/#JXAJV1#9)

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<div class="post-metadata">

**Author:** ![Evgeni\_Popov](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/evgeni_popov/32/4432_2.png) [@Evgeni\_Popov](https://forum.babylonjs.com/u/Evgeni_Popov)\
**Post date:** [March 13, 2025, 9:26am UTC](https://forum.babylonjs.com/t/use-thininstance-and-billboradmode/57098/2 "2025-03-13T09:26:38Z")

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You will have to compute the thin instance matrices yourself, see:

- [Billboard thin instances don't work correctly](https://forum.babylonjs.com/t/billboard-thin-instances-dont-work-correctly/28569)
- [Floating origin, billboarding and thin instances - #6 by Evgeni\_Popov](https://forum.babylonjs.com/t/floating-origin-billboarding-and-thin-instances/45464/6)