The smallest box shape that fully encloses a 3D mesh. They are usually used for things like broad phase culling, a technique to do an initial an coarse check for which parts of a 3D scene to include for rendering or collision detection.

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What are the disadvantages of R-Trees in collision detection?

I was poking around in SQLite and discovered R-trees. A little digging revealed that R-trees are really just fancy AABB-trees. Then I realize that the state of the art in collision detection (often ...
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102 views

How to resolve OBB collision penetration?

I would think this is a common issue, but I couldn't find an answer that helped me. Help would be appreciated. In my game I have rectangular objects. They have rotating bounding box, aka not AABB but ...
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65 views

How to Calculate K-Dops Faster

Ok so I have my general understanding of K-Dops for collision detection. I understand how to calculate them. I also understand the super slow way of recalculating them. Example: I have a simple ...
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68 views

Setting up 3d Collision for Primitive shapes

Im having some trouble understanding how to set up collision detection between my first person camera and my primitive shapes which are made using the vertex buffer. Do i give my camera a boundingBox ...
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98 views

How calculate a new node after cutting a node into an octree

I'm working on a small XNA game, voxel-based like minecraft. I've recently faced a problem in how to delete a node (cube) from an octree and re-calculate the new octree afterward. I have already ...
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476 views

How to identify whether the boundingvolume intersects with walls or floor when it doesnt return normals?

My game in jMonkey is the kind that use will have to place objects in a scene (which consist of walls and slabs and floor). All my models are centered at origin. When the user click a point I use ray ...
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39 views

Bounding Box for 3dModel

I've tried using the code from this post How do i create bounding boxes with XNA 4.0? to create a bounding box for a 3d model, but my bounding box is way smaller than my model. My model isn't scaled ...
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56 views

Organization of world/eye/clip bounding volumes for ray picking

I currently have objects defined in world coordinates and also other "overlay" type objects defined in eye or clip space. I want to be able to select objects (ray picking) from both the overlay or ...
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28 views

Getting size of Unity3D scene (bounding box)

I have following problem. I need to get bounding box of Unity3D scene in order to both making it impossible for character to fall endlessly if he happens to get out of the scene, and to calculate AI. ...