# Slow loading of GLB files with textures compared to Threejs **URL:** \ **Category:** Questions\ **Tags:** performance, glb, textures\ **Created:** [May 12, 2023, 7:21am UTC](https://forum.babylonjs.com/t/slow-loading-of-glb-files-with-textures-compared-to-threejs/40730 "2023-05-12T07:21:02Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![Johannes](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/johannes/32/32153_2.png) [@Johannes](https://forum.babylonjs.com/u/Johannes)\ **Post date:** [May 12, 2023, 7:21am UTC](https://forum.babylonjs.com/t/slow-loading-of-glb-files-with-textures-compared-to-threejs/40730/1 "2023-05-12T07:21:02Z")
Hello together, I am currently trying to reduce the loading time of a scene with about 30 materials. Some have textures, some do not. Unfortunately I noticed that the GLB file loads much faster with Threejs (almost instantly) compared to Babylonjs (~5-6 seconds). > **[Babylon.js Playground](https://playground.babylonjs.com/#WGZLGJ%238465)** > > Babylon.js playground is a live editor for Babylon.js WebGL 3D scenes The easiest way to reproduce the problem is to open the GLB file in [https://gltf-viewer.donmccurdy.com/](https://gltf-viewer.donmccurdy.com/) versus [https://sandbox.babylonjs.com/](https://sandbox.babylonjs.com/) I was able to isolate the problem and think it must have something to do with the textures. When I delete the textures the model loads very fast, as soon as I add textures to the materials the problem occurs. I have reduced the size of the textures and they are all saved as jpg. Now my question: how can I achieve approximately the same fast loading times as with Threejs? Tested with MAC Apple M1 Max / Firefox 114.0b2 (64-bit) ---
**Author:** ![sebavan](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/sebavan/32/57_2.png) [@sebavan](https://forum.babylonjs.com/u/sebavan)\ **Post date:** [May 12, 2023, 8:41am UTC](https://forum.babylonjs.com/t/slow-loading-of-glb-files-with-textures-compared-to-threejs/40730/2 "2023-05-12T08:41:19Z")
This sounds like a bug to me and 5-6 s is huge ☹ Could you share a model that repros your issue ? ---
**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:** [May 12, 2023, 9:44am UTC](https://forum.babylonjs.com/t/slow-loading-of-glb-files-with-textures-compared-to-threejs/40730/3 "2023-05-12T09:44:39Z")
I don’t reproduce on Windows. Whether it is the sandbox or the Three.js viewer, on Chrome it loads between 1s-2s and on Firefox between 2s-3s. @sebavan The file url is inside the PG. ---
**Author:** ![Johannes](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/johannes/32/32153_2.png) [@Johannes](https://forum.babylonjs.com/u/Johannes)\ **Post date:** [May 12, 2023, 11:29am UTC](https://forum.babylonjs.com/t/slow-loading-of-glb-files-with-textures-compared-to-threejs/40730/4 "2023-05-12T11:29:29Z")
Thank you for your support! The file: [test.glb.zip](https://forum.babylonjs.com/uploads/short-url/iNtMYQB0DGsefiVrM6d3FdNa848.zip) (1.2 MB) I made a small screen capture to visualize the problem better: [https://us1.discourse-cdn.com/flex024/uploads/babylonjs/original/3X/0/a/0a6006f12f74aa306937c40c6f85ac77116b862e.mp4](https://us1.discourse-cdn.com/flex024/uploads/babylonjs/original/3X/0/a/0a6006f12f74aa306937c40c6f85ac77116b862e.mp4) ---
**Author:** ![sebavan](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/sebavan/32/57_2.png) [@sebavan](https://forum.babylonjs.com/u/sebavan)\ **Post date:** [May 12, 2023, 6:55pm UTC](https://forum.babylonjs.com/t/slow-loading-of-glb-files-with-textures-compared-to-threejs/40730/5 "2023-05-12T18:55:12Z")
I do not repro it either ☹ I hope we ll be able to soon put our fingers on this one 🙂 @Johannes can you share a perf capture from when you load ? we should see the culprit there ---
**Author:** ![Johannes](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/johannes/32/32153_2.png) [@Johannes](https://forum.babylonjs.com/u/Johannes)\ **Post date:** [May 12, 2023, 8:10pm UTC](https://forum.babylonjs.com/t/slow-loading-of-glb-files-with-textures-compared-to-threejs/40730/6 "2023-05-12T20:10:45Z")
I am calmed that the problem only occurs with my setup. If it only loads slowly on Mac with Firefox, it doesn’t seem so bad. ![Loading Profile](https://us1.discourse-cdn.com/flex024/uploads/babylonjs/original/3X/c/0/c06e61ce4de201ffe4a0a0e490ab8cabca7fa1ee.png) ![Loadin Profile 2](https://us1.discourse-cdn.com/flex024/uploads/babylonjs/original/3X/e/1/e1b2fa5ff6b2abbbcebdeffe2ab149c3b3df0f45.png) Unfortunately I don’t know if this helps to identify the problem? ---
**Author:** ![sebavan](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/sebavan/32/57_2.png) [@sebavan](https://forum.babylonjs.com/u/sebavan)\ **Post date:** [May 12, 2023, 8:49pm UTC](https://forum.babylonjs.com/t/slow-loading-of-glb-files-with-textures-compared-to-threejs/40730/7 "2023-05-12T20:49:59Z")
This refresh driver tick at the bottom could be the reason ? ---
**Author:** ![carolhmj](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/carolhmj/32/25918_2.png) [@carolhmj](https://forum.babylonjs.com/u/carolhmj)\ **Post date:** [June 12, 2023, 2:08pm UTC](https://forum.babylonjs.com/t/slow-loading-of-glb-files-with-textures-compared-to-threejs/40730/8 "2023-06-12T14:08:38Z")
@Evgeni_Popov this isn’t related with the other slow initialization issues which were a chromium problem right? ---
**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:** [June 12, 2023, 2:27pm UTC](https://forum.babylonjs.com/t/slow-loading-of-glb-files-with-textures-compared-to-threejs/40730/9 "2023-06-12T14:27:42Z")
In fact, I think it may be the effect of environmental mapping. It seems that gltf-viewer does not load an environment map by default. Maybe he defaults to the spherical harmonic factor for ambient lighting? ---
**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:** [June 12, 2023, 2:52pm UTC](https://forum.babylonjs.com/t/slow-loading-of-glb-files-with-textures-compared-to-threejs/40730/10 "2023-06-12T14:52:49Z")
> [@carolhmj](#): > > @Evgeni_Popov this isn’t related with the other slow initialization issues which were a chromium problem right? I’m not sure what other initialization issue you are referring to(?) ---
**Author:** ![carolhmj](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/carolhmj/32/25918_2.png) [@carolhmj](https://forum.babylonjs.com/u/carolhmj)\ **Post date:** [June 12, 2023, 3:08pm UTC](https://forum.babylonjs.com/t/slow-loading-of-glb-files-with-textures-compared-to-threejs/40730/11 "2023-06-12T15:08:22Z")
This one: [1448494 - Loading issue… (chromium.org)](https://bugs.chromium.org/p/chromium/issues/detail?id=1448494) ---
**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:** [June 12, 2023, 3:16pm UTC](https://forum.babylonjs.com/t/slow-loading-of-glb-files-with-textures-compared-to-threejs/40730/12 "2023-06-12T15:16:04Z")
It’s hard to say, but I’d say that’s not the problem because I couldn’t reproduce the problem reported in the current thread, whereas I did for the SSR one.