# Problem with import glb and collisions

**URL:** <https://forum.babylonjs.com/t/problem-with-import-glb-and-collisions/18900>\
**Category:** Questions\
**Created:** [March 4, 2021, 8:45pm UTC](https://forum.babylonjs.com/t/problem-with-import-glb-and-collisions/18900 "2021-03-04T20:45:23Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Rory](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/rory/32/14734_2.png) [@Rory](https://forum.babylonjs.com/u/Rory)\
**Post date:** [March 4, 2021, 8:45pm UTC](https://forum.babylonjs.com/t/problem-with-import-glb-and-collisions/18900/1 "2021-03-04T20:45:23Z")

</div>

I’ve been trying to bring in my own glb models, but I’m having some issues with collision. Check out this playground, once I hit a wall I’m done for 🙈

[https://www.babylonjs-playground.com/#D6UBC9](https://www.babylonjs-playground.com/#D6UBC9)

Is this simply an issue with my model? I’m using the Khronos giTF exporter from SketchUp. I was hoping to create a nice walkthrough for a house model, but first experiments lead to these weird collision issue.

---

<div class="post-metadata">

**Author:** ![labris](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/labris/32/12576_2.png) [@labris](https://forum.babylonjs.com/u/labris)\
**Post date:** [March 4, 2021, 11:49pm UTC](https://forum.babylonjs.com/t/problem-with-import-glb-and-collisions/18900/2 "2021-03-04T23:49:43Z")

</div>

Seems that was some issue with the code. I had no time to check your PG (I presume there is some mistake) but here is the PG with your model - [https://playground.babylonjs.com/#4HUQQ#1482](https://playground.babylonjs.com/#4HUQQ#1482) , seems it is OK with collisions.

---

<div class="post-metadata">

**Author:** ![Rory](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/rory/32/14734_2.png) [@Rory](https://forum.babylonjs.com/u/Rory)\
**Post date:** [March 5, 2021, 8:57am UTC](https://forum.babylonjs.com/t/problem-with-import-glb-and-collisions/18900/3 "2021-03-05T08:57:45Z")

</div>

Thanks @labris ! I will look over my code again and see if I can spot the issue. 👍

[edit] It looks like the ground you added seems to be key to getting this to work. Maybe my camera/ellipsoid was somehow getting stuck in my model. Placing a floor under my model’s floor does the trick. This is totally workable for me. Thanks again!

[edit] After some further investigation it seems that the problem might have been in the way I was scaling my model. If I remove all scaling it works fine. I’m marking this as solved 😉