Motion-Blurred Shadows Utilizing a Depth-Time Ranges Shadow Map

MinhPhuoc Hong and Kyoungsu Oh
Volume: 14, No: 4, Page: 877 ~ 891, Year: 2018
10.3745/JIPS.02.0091
Keywords: Motion-Blurred Shadows, Real-Time Rendering, Space-Time Visibility
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Abstract
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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Cite this article
IEEE Style
MinhPhuoc Hong and Kyoungsu Oh, "Motion-Blurred Shadows Utilizing a Depth-Time Ranges Shadow Map," Journal of Information Processing Systems, vol. 14, no. 4, pp. 877~891, 2018. DOI: 10.3745/JIPS.02.0091.

ACM Style
MinhPhuoc Hong and Kyoungsu Oh, "Motion-Blurred Shadows Utilizing a Depth-Time Ranges Shadow Map," Journal of Information Processing Systems, 14, 4, (2018), 877~891. DOI: 10.3745/JIPS.02.0091.