THREE.js OBB Implementation

Question

I was able to use Yuka_OBB implementation to generate oriented bounding box. I have some questions regarding the obtained results:

Bed (AABB)

Bed (OBB)

Wall (AABB)

Wall (OBB)

Question: What type of OBB is generated here from one of the following types:

modal
up/gravity aligned
arbitrarily oriented in 3D space
semantically oriented with front

Question:

While, Bed (OBB) seems properly aligned, I want to understand what's going on with Wall (OBB)? Can I do better to improve the orientation of box around wall?

score 1 · Accepted Answer · edited Feb 28 '21 at 22:22

1

It is arbitrarily oriented in 3D space.

If it is the best-fit box, you can't improve it without getting a larger OBB. Read gamma.cs.unc.edu/users/gottschalk/main.pdf to get a better understanding of OBBs

edited Feb 28 '21 at 22:22

Sam

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answered Feb 27 '21 at 20:36

Mugen87

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If it is the best-fit box, you can't improve it without getting a larger OBB. – Mugen87 Feb 27 '21 at 20:38
I've never heard gravity-aligned OBBs, sorry. – Mugen87 Feb 27 '21 at 20:39
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@Rabbid76 TBH, I'm not sure what other information I should add to the answer. The OP should not ask multiple questions in one thread. I've just answered the first one. – Mugen87 Feb 27 '21 at 20:40
The `three.js` forum is actually the better place for this type of question: https://discourse.threejs.org/ – Mugen87 Feb 27 '21 at 20:41
@Mugen87 I see. Duplicate? – Rabbid76 Feb 27 '21 at 20:41
Oh, indeed! That is a duplicated. – Mugen87 Feb 27 '21 at 20:42
The OP should read http://gamma.cs.unc.edu/users/gottschalk/main.pdf to get a better understanding of OBBs. – Mugen87 Feb 27 '21 at 20:43
Okay, I've updated the answer (BTW: I can only delete my own comments). – Mugen87 Feb 27 '21 at 21:14

THREE.js OBB Implementation

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