Collision Detection

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Uniform Grid – Principle Insert all objects into grid and store IDs into cells Orange cell has only one ID Blue cells contain more Ids - define colliding pairs Colliding pairs: (1-2),(1-4),(4-5)sy332 22s3 3 13 25 4;5412255 41;4 1;2224;54x
Uniform Grid – AddBox We want to add new object “A” into grid Calculate AABB(A) = (A x-, A y-, A z-, A x+, A y+, A z+) of “A” Calculate Cell(A) = (A i-, A j-, A k-, A i+, A j+, A k+) For each cell within (A i-, A j-, A k-) and (A i+, A j+, A k+) For each ID stored in the cell create pair (ID k, ID) Add ID of object from the list of IDs (check duplicates)
Page 1 and 2: Juraj Onderik | onderik@sccg.skBroa
Page 3 and 4: Collision Detection Overview Collis
Page 5 and 6: Mid Phase Mid (refinement) collisio
Page 7 and 8: Collision Detection Phases Broad Ph
Page 9 and 10: Collision Detection Phases Broad Ph
Page 11 and 12: Uniform Grid - Principle Define a u
Page 13: Uniform Grid - Principle Insert obj
Page 17 and 18: Uniform Grid - UpdateBox Object has
Page 19 and 20: Hierarchical Uniform Grid Suppose 4
Page 21 and 22: Hierarchical Uniform Grid - Princip
Page 27 and 28: Hierarchical Uniform Grid - Methods
Page 29 and 30: Spatial Hashing Motivation: large g
Page 31 and 32: Sweep-And-Prune (SAP) Broad phase c
Page 33 and 34: Separating Axis Theorem Two convex
Page 35 and 36: SAP - Algorithm Principle Suppose a
Page 37 and 38: SAP - Algorithm Principle Project A
Page 39 and 40: SAP - Algorithm Principle Sort list
Page 41 and 42: SAP - Algorithm Principle Sweep X-l
Page 43 and 44: SAP - Algorithm Principle Do the sa
Page 45 and 46: SAP - Summary To achieve linear tim
Page 47 and 48: SAP - Incremental Update Reported p
Page 49 and 50: SAP - Incremental Update Limit swap
Page 51 and 52: Pair Management An ID pair is defin
Page 53 and 54: Efficient Pair Management In hash t
Page 55 and 56: Demos / tools / libs Free Open Sour

Collision Detection

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