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RISS 인기검색어
- 검색키워드
- 저자 : ( Minhphuoc Hong ) (검색결과 5 건)
- 무료
- 기관 내 무료
- 유료
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Real-Time Motion Blur Using Triangular Motion Paths
Hong, MinhPhuoc,Oh, Kyoungsu Korea Information Processing Society 2017 Journal of information processing systems Vol.13 No.4
This paper introduces a new algorithm that renders motion blur using triangular motion paths. A triangle occupies a set of pixels when moving from a position in the start of a frame to another position in the end of a frame. This is a motion path of a moving triangle. For a given pixel, we use a motion path of each moving triangle to find a range of time that this moving triangle is visible to the camera. Then, we sort visible time ranges in the depth-time dimensions and use bitwise operations to solve the occlusion problem. Thereafter, we compute an average color of each moving triangle based on its visible time range. Finally, we accumulate an average color of each moving triangle in the front-to-back order to produce the final pixel color. Thus, our algorithm performs shading after the visibility test and renders motion blur in real time.
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Motion-Blurred Shadows Utilizing a Depth-Time Ranges Shadow Map
Hong, MinhPhuoc,Oh, Kyoungsu Korea Information Processing Society 2018 Journal of information processing systems Vol.14 No.4
In this paper, we propose a novel algorithm for rendering motion-blurred shadows utilizing a depth-time ranges shadow map. First, we render a scene from a light source to generate a shadow map. For each pixel in the shadow map, we store a list of depth-time ranges. Each range has two points defining a period where a particular geometry was visible to the light source and two distances from the light. Next, we render the scene from the camera to perform shadow tests. With the depths and times of each range, we can easily sample the shadow map at a particular receiver and time. Our algorithm runs entirely on GPUs and solves various problems encountered by previous approaches.
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Real-Time Motion Blur Using Triangular Motion Paths
( Minhphuoc Hong ),( Kyoungsu Oh ) 한국정보처리학회 2017 Journal of information processing systems Vol.13 No.4
This paper introduces a new algorithm that renders motion blur using triangular motion paths. A triangle occupies a set of pixels when moving from a position in the start of a frame to another position in the end of a frame. This is a motion path of a moving triangle. For a given pixel, we use a motion path of each moving triangle to find a range of time that this moving triangle is visible to the camera. Then, we sort visible time ranges in the depth-time dimensions and use bitwise operations to solve the occlusion problem. Thereafter, we compute an average color of each moving triangle based on its visible time range. Finally, we accumulate an average color of each moving triangle in the front-to-back order to produce the final pixel color. Thus, our algorithm performs shading after the visibility test and renders motion blur in real time.
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Motion-Blurred Shadows Utilizing a Depth-Time Ranges Shadow Map
( Minhphuoc Hong ),( Kyoungsu Oh ) 한국정보처리학회 2018 Journal of information processing systems Vol.14 No.4
In this paper, we propose a novel algorithm for rendering motion-blurred shadows utilizing a depth-time ranges shadow map. First, we render a scene from a light source to generate a shadow map. For each pixel in the shadow map, we store a list of depth-time ranges. Each range has two points defining a period where a particular geometry was visible to the light source and two distances from the light. Next, we render the scene from the camera to perform shadow tests. With the depths and times of each range, we can easily sample the shadow map at a particular receiver and time. Our algorithm runs entirely on GPUs and solves various problems encountered by previous approaches.
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홍민푸(MinhPhuoc Hong),최진형(Jinhyung Choi),오경수(Kyoungsu Oh) 한국게임학회 2017 한국게임학회 논문지 Vol.17 No.1
최근 실시간으로 모션블러(motion blur)를 위한 연구들은 픽셀당 여러개의 시간 색상을 계산한 후 평균내는 방식으로 샘플의 수가 적을 경우 아티펙트(artifacts)나 노이즈(noise)가 발생하는 문제를 가지고 있다. 본 논문은 이러한 문제를 개선하기 위해서 이동궤적 근사 다면체(motion trail)를 이용한 실시간 모션블러 알고리즘을 제안한다. 본 논문의 알고리즘에서는 현재 프레임과 이전프레임의 삼각형으로 이동궤적 근사 다면체를 만들고 전후 관계(front-to-back) 정렬방법과 시공간차원의 비트연산(bitwise operation)을 적용하여 여러 물체가 겹치는 순간의 가시성 문제를 해결했다. 결과적으로 가려지지 않은 이동궤적 근사 다면체만을 그리기에 매끄러운 블러 효과를 얻는다. Several algorithms have been introduced to render motion blur in real time by solving the visibility problem in the spatio-temporal domains. However, some algorithms render at interactive frame rates but have artifacts or noise. Therefore, we propose a new algorithm that renders real-time motion blur using extruded triangles. Our method uses two triangles in the previous and the current frame to make an extruded triangle then send it to the rasterization. To solve the occlusion between extruded triangles for a given pixel, we introduce a combining solution using a sorting in front to back order and bitwise operations in the spatio-temporal dimensions.
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