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subdivision model l ing

subdivision model l ing. subdivision model l ing by: peter kán, peter kohút, martin vesel. Obsah prezentácie. Subdivision surfaces Catmull – Clark algoritmus Geri ’s game Ukážky modelovania Použité zdroje Záver. subdivision model l ing by: peter kán, peter kohút, martin vesel.

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subdivision model l ing

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  1. subdivision modelling subdivision modellingby: peter kán, peter kohút, martin vesel

  2. Obsah prezentácie • Subdivision surfaces • Catmull – Clark algoritmus • Geri’s game • Ukážky modelovania • Použité zdroje • Záver subdivision modellingby: peter kán, peter kohút, martin vesel

  3. Subdivision modelling • Modelovanie pomocou subdivision surfaces • Subdivision surfaces? subdivision modellingby: peter kán, peter kohút, martin vesel

  4. Subdivision surfaces - vývoj • Hlavný vývoj 1978 - subdivision surfaces boli parelene objavené Edwin Catmull a Jim Clark (Catmull-Clark subdivision surfaces), a Daniel Doo a Malcom Sabin (Doo-Sabin subdivision surfaces) 1995 - Ulrich Reif vyriešil správanie sa subdivision surface pri zvláštnych vrcholoch 1998 - Jos Stam prispel metódou na presné vyhodnotenie Catmull-Clark subdivision surfaces s ľubovolnými hodnotami parametrov subdivision modellingby: peter kán, peter kohút, martin vesel

  5. Subdivision surfaces - charakteristika • Kontolná sieť (control net) • Konečný povrch (eventual / limit surface) • Spojitosť (continuity) • Tvar – trojuholníky, štvrouholníky subdivision modellingby: peter kán, peter kohút, martin vesel

  6. Subdivision surfaces - charakteristika • Zvláštne vrcholy subdivision modellingby: peter kán, peter kohút, martin vesel

  7. Subdivision surfaces - charakteristika • Aproximačné metódy - Catmull - Clark, Doo-Sabin, Loop, Mid-Edge subdivision scheme, √3 subdivision scheme • Interpolačné metódy - Doo-Sabin, Butterfly, Midedge, Kobbelt subdivision modellingby: peter kán, peter kohút, martin vesel

  8. Catmull-Clark algoritmus subdivision modellingby: peter kán, peter kohút, martin vesel

  9. Catmull-Clark algoritmus • Rozšírený Catmull-Clark • Software - 3ds max, Blender, Gelato, Cheetah3D, Cinema4D, LightWave 3D - version 9, Maya, modo, Silo, Softimage XSI, Strata 3D CX, Wings 3D subdivision modellingby: peter kán, peter kohút, martin vesel

  10. Geri’s game • animovaný film od Pixar-u (1997) • vo filme sú použité subdivision surfaces • dostal Oskara za najlepší animovaný krátky film (1997) • 2:26 – na scéne sú obaja Geri naraz  subdivision modellingby: peter kán, peter kohút, martin vesel

  11. Ukážky modelovania • základné nastvenie subdivision surfaces v Blenderi • chobotnička subdivision modellingby: peter kán, peter kohút, martin vesel

  12. Ukážky modelovania • modelovanie ruky subdivision modellingby: peter kán, peter kohút, martin vesel

  13. Zdroje • http://en.wikipedia.org/wiki/Subdivision_surface • http://www.gamasutra.com/features/20000411/sharp_pfv.htm • http://en.wikipedia.org/wiki/Catmull-Clark_subdivision_surface • http://en.wikipedia.org/wiki/Geri's_Game • http://biorust.com/tutorials/detail/77/us/ • http://jlp.nerim.net/tutorials/hands-modelling/hands-tuto-01.html subdivision modellingby: peter kán, peter kohút, martin vesel

  14. Ďakujeme za pozornosť subdivision modellingby: peter kán, peter kohút, martin vesel

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