Hi,
I checked but I cant find how to create a bounding box who can rotate when my entity rotates (see the image below).
If my entity is a square the bounding box encapsulate my object. But if I rotate the object, the bounding box remains in initial position and the bounding box looks bad because toes not properly encapsulate the object.
BoundingBox fit entity
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1addrian111111
- Gnoblar
- Posts: 10
- Joined: Sun Dec 14, 2014 6:50 pm
BoundingBox fit entity
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dark_sylinc
- OGRE Team Member
- Posts: 5561
- Joined: Sat Jul 21, 2007 4:55 pm
- Location: Buenos Aires, Argentina
- x 1403
Re: BoundingBox fit entity
The keywords you're looking for is "Object-Oriented-Bounding-Box" (OOBB, or just Oriented Bounding Box aka OBB) as opposed to "Axis-Aligned-Bounding-Box" (AABB).
Creating an OBB out of an AABB is rather easy; since it's just affine-applying the world matrix to the 8 points of the OBB, like any cube.
But if you're looking a way to calculate an OBB out of an arbitrary set of points, that is considered a hard problem and you may want to look into ApproxMVBB.
Creating an OBB out of an AABB is rather easy; since it's just affine-applying the world matrix to the 8 points of the OBB, like any cube.
But if you're looking a way to calculate an OBB out of an arbitrary set of points, that is considered a hard problem and you may want to look into ApproxMVBB.