Check if non axis-aligned bounding box contains another one

Question

I work with Unity3D and want to check for neighbouring meshes next to a given mesh.

The problem is, Unity's bounding boxes are axis-aligned, so after rotation, they look like the first image below and are considered neighbours.

I want them to look like this:

How can I achieve this and how to get objects and calculate intersections of the two boxes.

Answer 1

A bounding box is always world-axis-aligned. A non-aligned box is just a box.

---

With that distincton made, you can use several methods to check if volumes intersect other volumes and/or points. Here are some:

• Physics.OverlapBox
• Physics.BoxCast
• Collider.ClosestPoint
• OnTrigger... methods from Collider