# \#vats

**URL:** https://forum.babylonjs.com/tag/vats/464.md

[Latest](https://forum.babylonjs.com/latest.md) · [Categories](https://forum.babylonjs.com/categories.md) · [Tags](https://forum.babylonjs.com/tags.md)

---

## [GPUParticleSystem syncing with VAT animations on mesh instances](https://forum.babylonjs.com/t/gpuparticlesystem-syncing-with-vat-animations-on-mesh-instances/59762)

<div class="topic-metadata">

**Author:** [@knervous](https://forum.babylonjs.com/u/knervous)\
**Replies:** 3\
**Last updated:** [July 30, 2025, 5:13pm UTC](https://forum.babylonjs.com/t/gpuparticlesystem-syncing-with-vat-animations-on-mesh-instances/59762 "2025-07-30T17:13:40Z")

</div>

So this was a fun deep dive getting to know what drives the particle systems, particularly the GPU particle systems, in Babylon. Here’s the setup and the PG Models with animations that have pre-generated VAT to create …

---

## [VAT - How to start animation at offset 0?](https://forum.babylonjs.com/t/vat-how-to-start-animation-at-offset-0/57719)

<div class="topic-metadata">

**Author:** [@ylacaute](https://forum.babylonjs.com/u/ylacaute)\
**Replies:** 8\
**Last updated:** [April 14, 2025, 10:15am UTC](https://forum.babylonjs.com/t/vat-how-to-start-animation-at-offset-0/57719 "2025-04-14T10:15:39Z")

</div>

Hello, I baked many animations in a texture, when I play an animation I always set the animation offset to 0, but I observe that the animation offset depends on time. I challenged ChatGPT and the IA told me this is the…

---

## [Error loading VAT exported from Blender (4.4.0 2025-03-18)](https://forum.babylonjs.com/t/error-loading-vat-exported-from-blender-4-4-0-2025-03-18/57562)

<div class="topic-metadata">

**Author:** [@TheStacheMustCurl](https://forum.babylonjs.com/u/TheStacheMustCurl)\
**Replies:** 5\
**Last updated:** [April 3, 2025, 3:19am UTC](https://forum.babylonjs.com/t/error-loading-vat-exported-from-blender-4-4-0-2025-03-18/57562 "2025-04-03T03:19:14Z")

</div>

Hello; I am trying to get a VAT file that was exported from Blender 4.4.0 using the OpenVAT add-on (GitHub - sharpen3d/openvat: Vertex animated texture for game engines based in Blender.) to load into the Babylon.js play…

---

## [Glb convert to babylon and VATs question](https://forum.babylonjs.com/t/glb-convert-to-babylon-and-vats-question/49761)

<div class="topic-metadata">

**Author:** [@zhangyahan](https://forum.babylonjs.com/u/zhangyahan)\
**Replies:** 8\
**Last updated:** [April 20, 2024, 8:54pm UTC](https://forum.babylonjs.com/t/glb-convert-to-babylon-and-vats-question/49761 "2024-04-20T20:54:51Z")

</div>

After exporting the glb format file using blender to babylon exporter, loading the babylon format file and baking the vertex animation for it, the effect of the vertex baking animation and the original glb animation has …

---

## [VATs thinInstance vertex buffer count maximum warning](https://forum.babylonjs.com/t/vats-thininstance-vertex-buffer-count-maximum-warning/49580)

<div class="topic-metadata">

**Author:** [@zhangyahan](https://forum.babylonjs.com/u/zhangyahan)\
**Replies:** 1\
**Last updated:** [April 12, 2024, 5:48am UTC](https://forum.babylonjs.com/t/vats-thininstance-vertex-buffer-count-maximum-warning/49580 "2024-04-12T05:48:44Z")

</div>

VATs thinInstance vertex buffer count maximum warning： Vertex buffer count (9) exceeds the maximum number of vertex buffers (8).

---

## [Vertex texture animations don't support shadows very well](https://forum.babylonjs.com/t/vertex-texture-animations-dont-support-shadows-very-well/49417)

<div class="topic-metadata">

**Author:** [@zhangyahan](https://forum.babylonjs.com/u/zhangyahan)\
**Replies:** 1\
**Last updated:** [April 8, 2024, 8:08am UTC](https://forum.babylonjs.com/t/vertex-texture-animations-dont-support-shadows-very-well/49417 "2024-04-08T08:08:50Z")

</div>

After adding a shadow to the mesh with vertex texture animation, the change of the shadow is not consistent with the vertex texture animation.