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Collision Detection http://www.cse.iitd.ac.in/ Collision Detection - PowerPoint PPT Presentation

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IIT Delhi Collision Detection http://www.cse.iitd.ac.in/ Collision Detection IIT Delhi Collision handling is fundamental to animation or dynamic scenes in virtual environments. http://www.cse.iitd.ac.in/ Applications IIT Delhi Games

  1. IIT Delhi Collision Detection http://www.cse.iitd.ac.in/

  2. Collision Detection IIT Delhi Collision handling is fundamental to animation or dynamic scenes in virtual environments. http://www.cse.iitd.ac.in/

  3. Applications IIT Delhi • Games • Simulation -Virtual Surgical -Vehicle Simulators • Haptics • Character Animation • Molecular Modeling Similarities in Robotics http://www.cse.iitd.ac.in/

  4. Two Issues IIT Delhi Collision Detection Finding if the collision has occurred: Given two moving objects defined in an initial and final configuration, determine if they intersected at some point between the two states geometric problem http://www.cse.iitd.ac.in/

  5. Two Issues IIT Delhi Collision Response Finding the response after collision is found: predicting behavior, may involve laws of physics http://www.cse.iitd.ac.in/

  6. Collision Detection IIT Delhi Rigid Body Motion Given N objects, finding collision is O(N 2 ). http://www.cse.iitd.ac.in/

  7. Collision Detection IIT Delhi Deformable objects Object-object collision Self collision http://www.cse.iitd.ac.in/

  8. Collision Detection IIT Delhi Main Issues Object-object intersection Have seen some in Clipping, Occlusion Computationally expensive Optimization Space partitioning Object hierarchy Reducing pair wise intersection (Hybrid approach) http://www.cse.iitd.ac.in/

  9. Collision Detection IIT Delhi Type of Query Boolean flag whether one is intersecting or not Intersecting parts need to be found http://www.cse.iitd.ac.in/

  10. Collision Detection IIT Delhi Feature Approach Two polyhedra. Inside/outside test: vertex inside the polyhedra? Edge to edge intersection http://www.cse.iitd.ac.in/

  11. Collision Detection IIT Delhi Feature Approach Mesh to mesh. http://www.cse.iitd.ac.in/

  12. Collision Detection IIT Delhi Broad Phase Approach Use of Bounding Volumes and Space Partitioning http://www.cse.iitd.ac.in/

  13. Collision Detection IIT Delhi – Bounding Volumes: Some examples http://www.cse.iitd.ac.in/

  14. Collision Detection IIT Delhi Broad Phase Approach Trees of bounding volumes are used, each level approximating the object. ( Bounding Volume Hierarchy, BVH) http://www.cse.iitd.ac.in/

  15. Collision Detection IIT Delhi Sphere Hierarchy http://www.cse.iitd.ac.in/

  16. Collision Detection IIT Delhi Sphere Hierarchy http://www.cse.iitd.ac.in/

  17. Collision Detection IIT Delhi Bounding Volume Based Collision Detection http://www.cse.iitd.ac.in/

  18. Collision Detection IIT Delhi Bounding Volume Based Collision Detection http://www.cse.iitd.ac.in/

  19. Collision Detection IIT Delhi Bounding Volume Based Collision Detection http://www.cse.iitd.ac.in/

  20. Collision Detection IIT Delhi Bounding Volume Based Collision Detection http://www.cse.iitd.ac.in/

  21. Collision Detection IIT Delhi Octree (Quad tree in 2D) http://www.cse.iitd.ac.in/

  22. Collision Detection IIT Delhi Collision Detection: Time Step http://www.cse.iitd.ac.in/

  23. IIT Delhi Thank You http://www.cse.iitd.ac.in/

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