# Wrong position of bounding box **URL:** \ **Category:** Bugs\ **Created:** [July 5, 2024, 12:04pm UTC](https://forum.babylonjs.com/t/wrong-position-of-bounding-box/51828 "2024-07-05T12:04:52Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![yedpodtrzitko](https://avatars.discourse-cdn.com/v4/letter/y/a9a28c/32.png) [@yedpodtrzitko](https://forum.babylonjs.com/u/yedpodtrzitko)\ **Post date:** [July 5, 2024, 12:04pm UTC](https://forum.babylonjs.com/t/wrong-position-of-bounding-box/51828/1 "2024-07-05T12:04:52Z")
I’ve edited the PG example to take into consideration some other scenarios current (expected) behaviour: - when clicking tree, it should show bounding box of the whole tree, not just trunk or crown. This works fine now due to traversing upward in the hierarchy - when clicking dude, it should show bounding box of the whole character. this also works fine - when clicking sphere attached to bone, it should show bounding box of the sphere. this also works fine now, thanks to @Tricotou what doesnt work: - when clicking the violin attached to bone, it should show bounding box of the violin, but the BB is misplaced. one more edit: I am spawning the meshes ad-hoc, so I cant hardcode the logic as `if (tree) { /* tree scenario */ } else { /* girl scenario */ } ` > **[Babylon.js Playground](https://playground.babylonjs.com/#6QTQLT%2315)** > > Babylon.js playground is a live editor for Babylon.js WebGL 3D scenes ---
**Author:** ![Tricotou](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/tricotou/32/5844_2.png) [@Tricotou](https://forum.babylonjs.com/u/Tricotou)\ **Post date:** [July 5, 2024, 1:33pm UTC](https://forum.babylonjs.com/t/wrong-position-of-bounding-box/51828/2 "2024-07-05T13:33:17Z")
Hello 🙂 Having a look at your setup I fund a few issues : - `skeleton.scaling = new BABYLON.Vector3(0.02, 0.02, 0.02);` → you should do `dude.scaling = new BABYLON.Vector3(0.02, 0.02, 0.02);` in this context, as well as you used dude for rotation. - In your hierarchycal bounding box compute, you do not check either `mesh` (last node traversed) and `clickedMesh` are the same. If they are the same (which is the case for the sphere), then there is no need to rebuild any bounding box ➡[Fixed Playground](https://playground.babylonjs.com/#6QTQLT#3) ---
**Author:** ![yedpodtrzitko](https://avatars.discourse-cdn.com/v4/letter/y/a9a28c/32.png) [@yedpodtrzitko](https://forum.babylonjs.com/u/yedpodtrzitko)\ **Post date:** [July 6, 2024, 5:37am UTC](https://forum.babylonjs.com/t/wrong-position-of-bounding-box/51828/3 "2024-07-06T05:37:54Z")
Thanks for your response. Some of the issues are actually from existing PG which I was using as a reference when learning how to attach mesh to bone ( [https://playground.babylonjs.com/#11BH6Z#18](https://playground.babylonjs.com/#11BH6Z#18) ). I was working with the sphere in the provided instead of attaching a compound mesh, as it looked like it’s (mis)behaving the same way. Unfortunately the fix for the sphere is not working with the compound mesh, see this updated PG: > **[Babylon.js Playground](https://playground.babylonjs.com/#6QTQLT%236)** > > Babylon.js playground is a live editor for Babylon.js WebGL 3D scenes ---
**Author:** ![roland](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/roland/32/38940_2.png) [@roland](https://forum.babylonjs.com/u/roland)\ **Post date:** [July 6, 2024, 10:50am UTC](https://forum.babylonjs.com/t/wrong-position-of-bounding-box/51828/4 "2024-07-06T10:50:15Z")
The picking part can be fixed like this: > **[Babylon.js Playground](https://playground.babylonjs.com/#6QTQLT%239)** > > Babylon.js playground is a live editor for Babylon.js WebGL 3D scenes ---
**Author:** ![roland](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/roland/32/38940_2.png) [@roland](https://forum.babylonjs.com/u/roland)\ **Post date:** [July 6, 2024, 12:53pm UTC](https://forum.babylonjs.com/t/wrong-position-of-bounding-box/51828/5 "2024-07-06T12:53:24Z")
With the bounding-box-all-selected: > **[Babylon.js Playground](https://playground.babylonjs.com/#6QTQLT%2310)** > > Babylon.js playground is a live editor for Babylon.js WebGL 3D scenes ---
**Author:** ![yedpodtrzitko](https://avatars.discourse-cdn.com/v4/letter/y/a9a28c/32.png) [@yedpodtrzitko](https://forum.babylonjs.com/u/yedpodtrzitko)\ **Post date:** [July 6, 2024, 1:28pm UTC](https://forum.babylonjs.com/t/wrong-position-of-bounding-box/51828/6 "2024-07-06T13:28:04Z")
Thanks, this one would be perfect, but it the traversing is needed to make it work with meshes like this tree - right now it select only the trunk or crown instead of the whole tree. > **[Babylon.js Playground](https://playground.babylonjs.com/#6QTQLT%2312)** > > Babylon.js playground is a live editor for Babylon.js WebGL 3D scenes ---
**Author:** ![roland](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/roland/32/38940_2.png) [@roland](https://forum.babylonjs.com/u/roland)\ **Post date:** [July 6, 2024, 1:39pm UTC](https://forum.babylonjs.com/t/wrong-position-of-bounding-box/51828/7 "2024-07-06T13:39:30Z")
See the second PG I posted ---
**Author:** ![yedpodtrzitko](https://avatars.discourse-cdn.com/v4/letter/y/a9a28c/32.png) [@yedpodtrzitko](https://forum.babylonjs.com/u/yedpodtrzitko)\ **Post date:** [July 6, 2024, 1:41pm UTC](https://forum.babylonjs.com/t/wrong-position-of-bounding-box/51828/8 "2024-07-06T13:41:52Z")
I tried to add the tree into that example as well, but that still doesnt work as expected - only the trunk or crown is selected: > **[Babylon.js Playground](https://playground.babylonjs.com/#6QTQLT%2313)** > > Babylon.js playground is a live editor for Babylon.js WebGL 3D scenes ---
**Author:** ![roland](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/roland/32/38940_2.png) [@roland](https://forum.babylonjs.com/u/roland)\ **Post date:** [July 6, 2024, 1:48pm UTC](https://forum.babylonjs.com/t/wrong-position-of-bounding-box/51828/9 "2024-07-06T13:48:35Z")
Create a parent for the tree parts as I did for the girl and the violin ---
**Author:** ![yedpodtrzitko](https://avatars.discourse-cdn.com/v4/letter/y/a9a28c/32.png) [@yedpodtrzitko](https://forum.babylonjs.com/u/yedpodtrzitko)\ **Post date:** [July 6, 2024, 2:13pm UTC](https://forum.babylonjs.com/t/wrong-position-of-bounding-box/51828/10 "2024-07-06T14:13:09Z")
That would work in this minimal example with specific set of meshes, however in the real project I am dynamically adding meshes into the scene and any of them can be selected with the bounding box displayed, so having just one `parent` variable wont work unless there will be some ad-hoc (un)parenting, which feels brittle. (Also the tree parts have a parent already - the ` __root__ ` mesh. How come it doesnt work with that?) The other approach would be to traverse upward in the hierarchy to reach the parent dynamically, but that’s where I started and where I have issue with the bounding box position, so… ---
**Author:** ![roland](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/roland/32/38940_2.png) [@roland](https://forum.babylonjs.com/u/roland)\ **Post date:** [July 6, 2024, 2:56pm UTC](https://forum.babylonjs.com/t/wrong-position-of-bounding-box/51828/11 "2024-07-06T14:56:28Z")
> [@yedpodtrzitko](#): > > That would work in this minimal example with specific set of meshes, Sry dude that’s what you asked for 😃 However: > **[Babylon.js Playground](https://playground.babylonjs.com/#6QTQLT%2314)** > > Babylon.js playground is a live editor for Babylon.js WebGL 3D scenes > [@yedpodtrzitko](#): > > (Also the tree parts have a parent already - the ` __root__ ` mesh. How come it doesnt work with that?) > [@Incorrect Bounding Info](https://forum.babylonjs.com/t/incorrect-bounding-info/44336/): > > Hello again! I have an application that requires bounding information of meshes, regardless of their transformations (except scaling). Which means, I would like to read correctBoundingInfo.boundingBox.extendSize to output the same value regardless how it’s translated or rotated, and surely the multiplied value when scaled. (Not sure if extendSize or extendSizeWorld+transformation, but you get the point, I need to get the same width-height-depth values of the box) The bounding related methods w… ---
**Author:** ![yedpodtrzitko](https://avatars.discourse-cdn.com/v4/letter/y/a9a28c/32.png) [@yedpodtrzitko](https://forum.babylonjs.com/u/yedpodtrzitko)\ **Post date:** [July 7, 2024, 3:16am UTC](https://forum.babylonjs.com/t/wrong-position-of-bounding-box/51828/12 "2024-07-07T03:16:15Z")
I dont believe I asked for that specifically, but I agree the MVP didnt properly reflect all the expectations and edge cases. I updated the original post to be explicit about the expected behaviour and all different cases. Thanks for the provided link. I read through the whole thread there, and tried to apply each approach, but none of that still work as expected for each scenario (either the tree or violin is misbehaving). ---
**Author:** ![roland](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/roland/32/38940_2.png) [@roland](https://forum.babylonjs.com/u/roland)\ **Post date:** [July 7, 2024, 4:47am UTC](https://forum.babylonjs.com/t/wrong-position-of-bounding-box/51828/13 "2024-07-07T04:47:11Z")
If you edit a post which has answers already, don’t remove the original question. Add an EDIT: mark and type your edit below. ---
**Author:** ![roland](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/roland/32/38940_2.png) [@roland](https://forum.babylonjs.com/u/roland)\ **Post date:** [July 7, 2024, 4:51am UTC](https://forum.babylonjs.com/t/wrong-position-of-bounding-box/51828/14 "2024-07-07T04:51:00Z")
> [@yedpodtrzitko](#): > > when clicking the violin attached to bone, it should show bounding box of the violin, but the BB is misplaced. I’ve provided 3 PG’s where the violin picking works: ![image](https://us1.discourse-cdn.com/flex024/uploads/babylonjs/original/3X/7/8/78e4b363f55a827584411c8313a06747890aac3d.jpeg) You replaced the picking code everytime you posted your PG with the old one which doesn’t work! (hey @Tricotou wassup! 😃 ) > [@roland](#): > > Sry dude that’s what you asked for 😃 > > However: > > [Babylon.js Playground](https://playground.babylonjs.com/#6QTQLT%2314) ![image](https://us1.discourse-cdn.com/flex024/uploads/babylonjs/original/3X/f/1/f176fc4a3a620badcb87d838ab149eb64316ecda.jpeg) ---
**Author:** ![yedpodtrzitko](https://avatars.discourse-cdn.com/v4/letter/y/a9a28c/32.png) [@yedpodtrzitko](https://forum.babylonjs.com/u/yedpodtrzitko)\ **Post date:** [July 7, 2024, 5:31am UTC](https://forum.babylonjs.com/t/wrong-position-of-bounding-box/51828/15 "2024-07-07T05:31:35Z")
ok I’ll do the edit better next time. The example you provided is ignoring the constraint I mentioned that I am spawning the meshes dynamically, so I cant just hardcode the logic as `if (tree) else girl`. ---
**Author:** ![roland](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/roland/32/38940_2.png) [@roland](https://forum.babylonjs.com/u/roland)\ **Post date:** [July 7, 2024, 5:35am UTC](https://forum.babylonjs.com/t/wrong-position-of-bounding-box/51828/16 "2024-07-07T05:35:42Z")
> [@yedpodtrzitko](#): > > so I cant just hardcode the logic as `if (tree) else girl`. Code your own logic to select the right parent according to the picked mesh. > [@yedpodtrzitko](#): > > I mentioned that I am spawning the meshes dynamically, so I cant just hardcode the logic as `if (tree) else girl`. Not to mention you added this edit after my previous response. Dude dude you killing me… 😃 ---
**Author:** ![yedpodtrzitko](https://avatars.discourse-cdn.com/v4/letter/y/a9a28c/32.png) [@yedpodtrzitko](https://forum.babylonjs.com/u/yedpodtrzitko)\ **Post date:** [July 8, 2024, 12:23am UTC](https://forum.babylonjs.com/t/wrong-position-of-bounding-box/51828/17 "2024-07-08T00:23:30Z")
> [@roland](#): > > Not to mention you added this edit after my previous response. Dude dude you killing me… 😃 this was already mentioned in another message I posted in this thread earlier. ---
**Author:** ![roland](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/roland/32/38940_2.png) [@roland](https://forum.babylonjs.com/u/roland)\ **Post date:** [July 8, 2024, 12:31am UTC](https://forum.babylonjs.com/t/wrong-position-of-bounding-box/51828/18 "2024-07-08T00:31:13Z")
Sorry I’m dropping the 🎤 …and you already have a solution ---
**Author:** ![yedpodtrzitko](https://avatars.discourse-cdn.com/v4/letter/y/a9a28c/32.png) [@yedpodtrzitko](https://forum.babylonjs.com/u/yedpodtrzitko)\ **Post date:** [July 8, 2024, 1:32am UTC](https://forum.babylonjs.com/t/wrong-position-of-bounding-box/51828/19 "2024-07-08T01:32:05Z")
None of the solutions you provided works as expected. Eg. when I click the tree trunk, it shows the tree bounding box (expected), but also the bounding box of the trunk, which is not desired. Same with violin/sphere - I need only the bounding box of that particular item, not the whole character. So thanks for nothing I guess and bye. ---
**Author:** ![roland](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/roland/32/38940_2.png) [@roland](https://forum.babylonjs.com/u/roland)\ **Post date:** [July 8, 2024, 2:31am UTC](https://forum.babylonjs.com/t/wrong-position-of-bounding-box/51828/20 "2024-07-08T02:31:13Z")
> [@yedpodtrzitko](#): > > So thanks for nothing I guess and bye. LOL Insolent and smug 😃 Comment out line 74, vole! [Next page](https://forum.babylonjs.com/t/wrong-position-of-bounding-box/51828.md?page=2)