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Ssao

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Transcript

  • 1. SSAO(Screen Space Ambient Occlusion)
    2011-05-30
  • 2. Content
    Summary
    SSAO ?
    Example
    Implementation
    Algorithm theory
    Algorithm Implementation ( with source code )
    Result
    Sample program
  • 3. What is SSAO ?
    Martin Mittring이 2007 SIGGRAPH 논문 "Finding Next Gen”
    중첩되는 오브젝트가 있을 경우 함몰된 부분이 광원의 효과를 비교적 덜 받게 되어 주변부보다 깊은 암부가 만들어지는 것을 재현하는 기술, 실시간으로 오브젝트의 3차원 정보 중 깊이(Z)값을 파악해 주변보다 Z값이 큰 부위에 암부를 생성
  • 4. Example
  • 5. Algorithm
    < Algorithm flow >
  • 6. Algorithm
    < Sampling kernel >
    < Noise Texture >
  • 7. Shader Code
  • 8. Result