# What limitation component export glb and load glb in 4.16.0+ **URL:** \ **Category:** 🌵 Needle Engine\ **Tags:** question\ **Created:** [March 18, 2026, 5:28am UTC](https://forum.needle.tools/t/what-limitation-component-export-glb-and-load-glb-in-4-16-0/2809 "2026-03-18T05:28:46Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![oot4chi](https://forum.needle.tools/user_avatar/forum.needle.tools/oot4chi/32/3817_2.png) [@oot4chi](https://forum.needle.tools/u/oot4chi)\ **Post date:** [March 18, 2026, 5:28am UTC](https://forum.needle.tools/t/what-limitation-component-export-glb-and-load-glb-in-4-16-0/2809/1 "2026-03-18T05:28:47Z")
What limitation component export glb and load glb in 4.16.0+ ---
**Author:** ![needle-assistant](https://forum.needle.tools/user_avatar/forum.needle.tools/needle-assistant/32/3415_2.png) [@needle-assistant](https://forum.needle.tools/u/needle-assistant)\ **Post date:** [March 18, 2026, 5:28am UTC](https://forum.needle.tools/t/what-limitation-component-export-glb-and-load-glb-in-4-16-0/2809/2 "2026-03-18T05:28:47Z")
Hello oot4chi! Thank you for your question about the limitations of exporting and loading glb files in Needle Engine 4.16.0+. Based on the documentation provided, there are a few key limitations to be aware of: 1. **Materials Limitation** : Currently, Needle Engine does not support duplicating materials on export. If you need to animate the same material with different colors or properties, you will need to create separate materials. 2. **Skybox Limitation** : The Unity skybox and custom reflection are baked into a texture during export and automatically included in the `NEEDLE_lightmaps` extension. If you do not wish to include the skybox in your glb file, you must uncheck the `Embed Skybox` option on your `GltfObject` component. 3. **Nested `GltfObject` Limitation** : Cross-references between nested `GltfObject` components are not supported. This means that while you can use nested `GltfObject` components to defer loading, you cannot include references between nested glTF files. 4. **Optional Components** : Certain components, like `MeshRenderer`, can be excluded from export if they are tagged as `EditorOnly`. 5. **Preloading Materials** : There is an option to preload the MaterialX WebAssembly module by calling `useNeedleMaterialX(gltfLoader, { preload: true })`. This should ensure that materials are ready when you load glb files that contain `NEEDLE_materials_mtlx` extension. Would you like more specific details on how to set these up in your project, or do you have any other questions related to these limitations? Here are some more details that might help: - **Smart Export** : You can control the export behavior via the `Smart Export` setting in `Edit > Project Settings > Needle`, where only objects and their children that have been modified will be exported upon each change. - **Auto Compression** : A `CompressionSettings` component is added automatically to optimize textures and meshes, ensuring a performance boost. Feel free to provide more context about your project, and I’ll do my best to offer a more detailed solution or explanation. Sources: [Needle Engine API](https://engine.needle.tools/docs/api/classes/Built-in_Components.GltfExport.html#:~:text=APIDocsSamplesPricing%20Preparing%20search%20index..) (59%), [Needle Engine API]([INeedleGltfLoader | Needle Engine](https://engine.needle.tools/docs/api/interfaces/Engine_Core.INeedleGltfLoader.html#:~:text=interface%20INeedleGltfLoader%20%7B%20createBuiltinComponents(%20context%3A%20Context%2C%20gltfId%3A)) (57%), [Needle Engine Docs](https://engine.needle.tools/docs/how-to-guides/export/materialx.html#:~:text=Load%20GLB%20files%20that%20contain%20the%20NEEDLE_materials_mtlx%20extension) (56%), [Needle Engine API](https://engine.needle.tools/docs/api/functions/Engine_Core.exportAsGLTF.html#:~:text=APIDocsSamplesPricing%20Preparing%20search%20index..) (56%), [Needle Engine API](https://engine.needle.tools/docs/api/types/Engine_Core.GLTF.html#:~:text=APIDocsSamplesPricing%20Preparing%20search%20index..) (55%), [Needle Engine Docs](https://engine.needle.tools/docs/how-to-guides/export/#:~:text=One%20current%20limitation%20is%20that%20materials%20won't%20be%20duplicated%20on%20export%20%E2%80%94%20if%20you) (55%), [Needle Engine Docs](https://engine.needle.tools/docs/gltf-progressive/#:~:text=Optimization%20%26%20Compression%20%E2%80%94%20Texture%2Fmesh%20compression%2C%20build%20types%2C%20and%20optimiza) (55%), [Needle Engine Docs](https://engine.needle.tools/docs/unity/#:~:text=Export%20Assets%20-%20Control%20what%20gets%20exported%20Create%20Components%20-%20Write%20interactive) (55%), [Needle Engine Docs](https://engine.needle.tools/docs/explanation/exporting-to-gltf.html#:~:text=Optional%20-%20Use%20GltfObject%20to%20limit%20scope%3A%20Add%20a%20GltfObject%20component%20to%20export%20o) (55%) _1 replies left_ - **[Become PRO](https://needle.tools/pricing)** for more replies. _**Reply to this post directly if you need further help (bottom right button)**_ ---
**Author:** ![oot4chi](https://forum.needle.tools/user_avatar/forum.needle.tools/oot4chi/32/3817_2.png) [@oot4chi](https://forum.needle.tools/u/oot4chi)\ **Post date:** [March 18, 2026, 5:36am UTC](https://forum.needle.tools/t/what-limitation-component-export-glb-and-load-glb-in-4-16-0/2809/3 "2026-03-18T05:36:35Z")
why particle system and other build-in component cant export ---
**Author:** ![needle-assistant](https://forum.needle.tools/user_avatar/forum.needle.tools/needle-assistant/32/3415_2.png) [@needle-assistant](https://forum.needle.tools/u/needle-assistant)\ **Post date:** [March 18, 2026, 5:36am UTC](https://forum.needle.tools/t/what-limitation-component-export-glb-and-load-glb-in-4-16-0/2809/4 "2026-03-18T05:36:35Z")
Hello oot4chi, Thank you for your question about exporting Particle System and other built-in components using Needle Engine. Based on the information provided in the Needle Engine documentation, it seems that the limitations and specific requirements for exporting glb files might be related to how certain components handle during the export process. To clarify, here are some key points and questions to help understand the issue better: 1. **Materials and Textures** : 2. **Skybox and Reflections** : 3. **Nested `GltfObject` Components** : 4. **General Export Settings** : If you could provide more details on the exact steps you’re taking to export the Particle System and any error messages or unexpected behaviors you’re encountering, it would be helpful in diagnosing the issue further. Additionally, have you tried checking the Needle Engine forums or support pages for specific guidance on exporting Particle System components? Sometimes, the community can provide additional insights or workarounds that are not covered in the official documentation. I hope these questions help, and looking forward to your feedback! Sources: [Needle Engine API](https://engine.needle.tools/docs/api/classes/Built-in_Components.ParticleSystem.html#:~:text=APIDocsSamplesPricing%20Preparing%20search%20index..) (63%), [Needle Engine Docs](https://engine.needle.tools/docs/getting-started/#:~:text=Know%20what%20you%20want%20to%20build) (61%), [Needle Engine Docs](https://engine.needle.tools/docs/unity/#:~:text=Export%20Assets%20-%20Control%20what%20gets%20exported%20Create%20Components%20-%20Write%20interactive) (61%), [Needle Engine API](https://engine.needle.tools/docs/api/classes/Built-in_Components.ParticleSystemBaseBehaviour.html#:~:text=APIDocsSamplesPricing%20Preparing%20search%20index..) (56%), [Needle Engine Docs](https://engine.needle.tools/docs/tutorials/fundamentals/for-blender-artists.html#:~:text=Many%20Needle%20Engine%20users%20are%20artists%20and%20designers%20with%20no%20coding%20background) (56%), [Needle Engine Docs](https://engine.needle.tools/docs/help/#:~:text=Need%20help%20with%20Needle%20Engine) (55%), [Needle Engine API](https://engine.needle.tools/docs/api/classes/Built-in_Components.ParticleBurst.html#:~:text=APIDocsSamplesPricing%20Preparing%20search%20index..) (55%), [Needle Engine API](https://engine.needle.tools/docs/api/classes/Built-in_Components.USDZExporter.html#:~:text=afterExport%20beforeExport%20beforeLODExport) (55%), [Needle Engine API](https://engine.needle.tools/docs/api/hierarchy.html#:~:text=ParticleSystem%20Attractor%20PlayerColor%20Volume%20ReflectionProbe%20Renderer%20MeshRendere) (54%) _0 replies left_ - **[Become PRO](https://needle.tools/pricing)** for more replies. _**Reply to this post directly if you need further help (bottom right button)**_ ---
**Author:** ![Marcel\_Wiessler1](https://forum.needle.tools/user_avatar/forum.needle.tools/marcel_wiessler1/32/21_2.png) [@Marcel\_Wiessler1](https://forum.needle.tools/u/Marcel_Wiessler1)\ **Post date:** [March 18, 2026, 7:41am UTC](https://forum.needle.tools/t/what-limitation-component-export-glb-and-load-glb-in-4-16-0/2809/5 "2026-03-18T07:41:21Z")
Hi, could you clarify what you mean? Are you asking about exporting glTf files from Unity, Blender or something else? ---
**Author:** ![Marcel\_Wiessler1](https://forum.needle.tools/user_avatar/forum.needle.tools/marcel_wiessler1/32/21_2.png) [@Marcel\_Wiessler1](https://forum.needle.tools/u/Marcel_Wiessler1)\ **Post date:** [March 18, 2026, 7:42am UTC](https://forum.needle.tools/t/what-limitation-component-export-glb-and-load-glb-in-4-16-0/2809/6 "2026-03-18T07:42:57Z")
Same question here: Please provide a bit more context/information. ParticleSystems do export from Unity. We do not support ParticleSystem export in Blender right now. What other components are you refering to? ---
**Author:** ![oot4chi](https://forum.needle.tools/user_avatar/forum.needle.tools/oot4chi/32/3817_2.png) [@oot4chi](https://forum.needle.tools/u/oot4chi)\ **Post date:** [March 18, 2026, 7:43am UTC](https://forum.needle.tools/t/what-limitation-component-export-glb-and-load-glb-in-4-16-0/2809/7 "2026-03-18T07:43:14Z")
use export GLB in unity needle version 4.16.3 ![image](https://europe1.discourse-cdn.com/flex006/uploads/needle1/original/2X/a/ad43a8acb5b93d8b26f868ebf2a972daf264729f.png) ---
**Author:** ![Marcel\_Wiessler1](https://forum.needle.tools/user_avatar/forum.needle.tools/marcel_wiessler1/32/21_2.png) [@Marcel\_Wiessler1](https://forum.needle.tools/u/Marcel_Wiessler1)\ **Post date:** [March 18, 2026, 10:01am UTC](https://forum.needle.tools/t/what-limitation-component-export-glb-and-load-glb-in-4-16-0/2809/8 "2026-03-18T10:01:40Z")
Does your scene from where you export from have a Needle Engine component with a web project? It’s necessary to export built-in components. ---
**Author:** ![Marcel\_Wiessler1](https://forum.needle.tools/user_avatar/forum.needle.tools/marcel_wiessler1/32/21_2.png) [@Marcel\_Wiessler1](https://forum.needle.tools/u/Marcel_Wiessler1)\ **Post date:** [March 20, 2026, 4:42pm UTC](https://forum.needle.tools/t/what-limitation-component-export-glb-and-load-glb-in-4-16-0/2809/9 "2026-03-20T16:42:49Z")
@oot4chi Sorry we had a regression in 4.16.x where the builtin types were not recognized when using context menu exports. A fix will be available soon. → Fixed in [Releases & Changelogs - #161 by needle-bot](https://forum.needle.tools/t/releases-changelogs/164/161) ---
**Author:** ![system](https://forum.needle.tools/user_avatar/forum.needle.tools/system/32/20_2.png) [@system](https://forum.needle.tools/u/system)\ **Post date:** [April 2, 2026, 4:43pm UTC](https://forum.needle.tools/t/what-limitation-component-export-glb-and-load-glb-in-4-16-0/2809/10 "2026-04-02T16:43:22Z")
Closed on April 2, 2026, 4:43pm UTC This topic was automatically closed 13 days after the last reply. New replies are no longer allowed.