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목록coloraccumulation #transparencyhandling #depthordering (1)
Wiredwisdom
Ray for Final Color (Alpha-blending & NeRF)
기본적으로 최종 색상은 위와 같이 계산된다. 하지만 여기서 중요한 사실은 해당 가우시안이 포인트의 집합이라는 것이고첫번째 가우시안에서 발산되는 색상이 뒤의 가우시안을 지나침에 따라 감쇠되는 속성은 계산하지 않았다는 사실이다.Transmittance와 opacity의 값을 더하면 1이 된다. 각 Transmittance를 적층해서 구하는 식을 그리고 있다.먼저 각 매질의 Transmittance를 각 매질의 두께(특정 Ray가 지나가는 두께)와 밀도를 통해 exp 함수로 표현하고여기에 1을 빼어 Opacity를 구한다. 이 값을 가지고 다시 Accumulated 된 Transmittance를 구하게 되는 것이다. 하나의 광원, Ray가 각 가우시안을 투과하면서 최종적으로 Transmitta..
Vision/Gaussian Splatting
2024. 6. 22. 16:26