
398 Virtual Reality: Concepts and Technologies
Spheres AABB
k–DOP OBB
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T
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Figure 17.12 Test of collision between bounding volumes
17.2.3 Approximate detection (narrow-phase)
Approximate detection uses more and more detailed approximations of objects done by
simple volumes to locate the zones affected by a collision. Though bounding volumes
are most commonly used, please note that the bound volumes (i.e. contained in the
object) can be useful to indicate a certain collision when they intersect each other. A
rough search of collisions can also benefit from modern graphic acceleration functions;
several methods ...