What's the difference between AABB and OBB?

I’ve looked through the docs and done some google searches, and I can’t seem to find any information on the difference between AABB and OBB–or even what they technically refer to. I know (think?) they have something to do with bounding boxes, but I’d love to read some more specific information on it. Is there more information on that anywhere, or could someone give me a simple explanation?

On a related note, are those acronyms?

AABB - is Axis-Aligned Bounding Box.
OBB - Oriented Bounding Box.
Those are well established computer science terms. The difference is pretty simple - AABB is not rotated, OBB can be rotated.

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Here’s a video https://youtu.be/HYO5Pthe3TE


The reason for having the AABB is that they are cheaper to test against versus a OBB which is way there is a combination of both in the WebVR Labs :slight_smile:

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You guys are amazing. Thanks for such quick and detailed information about this.